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The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-45447","cvss":[{"type":"Secondary","source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":8.1,"impactScore":5.9,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}},{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":8.8,"impactScore":5.9,"exploitabilityScore":2.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-45447","cwe":"CWE-416","type":"Secondary","source":"openssl-security@openssl.org"},{"cve":"CVE-2026-45447","cwe":"CWE-825","type":"Secondary","source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}],"epss":[{"cve":"CVE-2026-45447","date":"2026-10-27","epss":0.04002,"percentile":0.90481}],"urls":["https://github.com/openssl/openssl/commit/3aad5eb7af4de4ee0633c30a8541a54d9bbde63c","https://github.com/openssl/openssl/commit/7d4a980c62258c5910cc883936e0c8dbab4d75a8","https://github.com/openssl/openssl/commit/9dfd688ad2290fc5075cacbc9bf0c9a93eefed54","https://github.com/openssl/openssl/commit/a541ae8bfe849a30cc885e8780715c0f488e496c","https://github.com/openssl/openssl/commit/c505d7559da5d5f9f2c3913c6883a5562ce7273e","https://openssl-library.org/news/secadv/20260609.txt","https://access.redhat.com/errata/RHSA-2026:25237","https://access.redhat.com/errata/RHSA-2026:25239","https://access.redhat.com/errata/RHSA-2026:26275","https://access.redhat.com/errata/RHSA-2026:26319","https://access.redhat.com/errata/RHSA-2026:29197","https://access.redhat.com/errata/RHSA-2026:34102","https://access.redhat.com/errata/RHSA-2026:35869","https://access.redhat.com/errata/RHSA-2026:36215","https://access.redhat.com/errata/RHSA-2026:36217","https://access.redhat.com/errata/RHSA-2026:39009","https://access.redhat.com/errata/RHSA-2026:39012","https://access.redhat.com/errata/RHSA-2026:39981","https://access.redhat.com/errata/RHSA-2026:44438","https://access.redhat.com/errata/RHSA-2026:47735","https://access.redhat.com/errata/RHSA-2026:47737","https://access.redhat.com/errata/RHSA-2026:58563","https://access.redhat.com/errata/RHSA-2026:58981","https://access.redhat.com/errata/RHSA-2026:59831","https://access.redhat.com/errata/RHSA-2026:66524","https://access.redhat.com/security/cve/CVE-2026-45447","https://bugzilla.redhat.com/show_bug.cgi?id=2481898","https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45447.json"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-45447","description":"Issue summary: A specially crafted PKCS#7 or S/MIME signed message could\ntrigger a use-after-free during PKCS#7 signature verification.\n\nImpact summary: A use-after-free may result in process crashes, heap\ncorruption, or potentially remote code execution.\n\nWhen processing a PKCS#7 or S/MIME signed message, if the SignedData\ndigestAlgorithms field is present as an empty ASN.1 SET, OpenSSL may\nincorrectly free a caller-owned BIO during PKCS7_verify(). A subsequent\nuse of the BIO by the calling application results in a use-after-free\ncondition.\n\nIn the common case this occurs when the application later calls\nBIO_free() on the BIO originally passed to PKCS7_verify(). Depending\non allocator behavior and application-specific BIO usage patterns, this\nmay result in a crash or other memory corruption. In some application\ncontexts this may potentially be exploitable for remote code execution.\n\nApplications that process PKCS#7 or S/MIME signed messages using OpenSSL\nPKCS#7 APIs may be affected. Applications using the CMS APIs for this\nprocessing are not affected.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this\nissue, as the affected code is outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-45447","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-45447","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":8.1,"impactScore":5.9,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-45447","cwe":"CWE-416","type":"Secondary","source":"openssl-security@openssl.org"},{"cve":"CVE-2026-45447","cwe":"CWE-825","type":"Secondary","source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}],"epss":[{"cve":"CVE-2026-45447","date":"2026-10-27","epss":0.04002,"percentile":0.90481}],"risk":3.12156,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-45447","description":"Issue summary: A specially crafted PKCS#7 or S/MIME signed message could trigger a use-after-free during PKCS#7 signature verification.  Impact summary: A use-after-free may result in process crashes, heap corruption, or potentially remote code execution.  When processing a PKCS#7 or S/MIME signed message, if the SignedData digestAlgorithms field is present as an empty ASN.1 SET, OpenSSL may incorrectly free a caller-owned BIO during PKCS7_verify(). A subsequent use of the BIO by the calling application results in a use-after-free condition.  In the common case this occurs when the application later calls BIO_free() on the BIO originally passed to PKCS7_verify(). Depending on allocator behavior and application-specific BIO usage patterns, this may result in a crash or other memory corruption. In some application contexts this may potentially be exploitable for remote code execution.  Applications that process PKCS#7 or S/MIME signed messages using OpenSSL PKCS#7 APIs may be affected. Applications using the CMS APIs for this processing are not affected.  The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-45447","cvss":[{"type":"Secondary","source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":8.1,"impactScore":5.9,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}},{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":8.8,"impactScore":5.9,"exploitabilityScore":2.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-45447","cwe":"CWE-416","type":"Secondary","source":"openssl-security@openssl.org"},{"cve":"CVE-2026-45447","cwe":"CWE-825","type":"Secondary","source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}],"epss":[{"cve":"CVE-2026-45447","date":"2026-10-27","epss":0.04002,"percentile":0.90481}],"urls":["https://github.com/openssl/openssl/commit/3aad5eb7af4de4ee0633c30a8541a54d9bbde63c","https://github.com/openssl/openssl/commit/7d4a980c62258c5910cc883936e0c8dbab4d75a8","https://github.com/openssl/openssl/commit/9dfd688ad2290fc5075cacbc9bf0c9a93eefed54","https://github.com/openssl/openssl/commit/a541ae8bfe849a30cc885e8780715c0f488e496c","https://github.com/openssl/openssl/commit/c505d7559da5d5f9f2c3913c6883a5562ce7273e","https://openssl-library.org/news/secadv/20260609.txt","https://access.redhat.com/errata/RHSA-2026:25237","https://access.redhat.com/errata/RHSA-2026:25239","https://access.redhat.com/errata/RHSA-2026:26275","https://access.redhat.com/errata/RHSA-2026:26319","https://access.redhat.com/errata/RHSA-2026:29197","https://access.redhat.com/errata/RHSA-2026:34102","https://access.redhat.com/errata/RHSA-2026:35869","https://access.redhat.com/errata/RHSA-2026:36215","https://access.redhat.com/errata/RHSA-2026:36217","https://access.redhat.com/errata/RHSA-2026:39009","https://access.redhat.com/errata/RHSA-2026:39012","https://access.redhat.com/errata/RHSA-2026:39981","https://access.redhat.com/errata/RHSA-2026:44438","https://access.redhat.com/errata/RHSA-2026:47735","https://access.redhat.com/errata/RHSA-2026:47737","https://access.redhat.com/errata/RHSA-2026:58563","https://access.redhat.com/errata/RHSA-2026:58981","https://access.redhat.com/errata/RHSA-2026:59831","https://access.redhat.com/errata/RHSA-2026:66524","https://access.redhat.com/security/cve/CVE-2026-45447","https://bugzilla.redhat.com/show_bug.cgi?id=2481898","https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45447.json"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-45447","description":"Issue summary: A specially crafted PKCS#7 or S/MIME signed message could\ntrigger a use-after-free during PKCS#7 signature verification.\n\nImpact summary: A use-after-free may result in process crashes, heap\ncorruption, or potentially remote code execution.\n\nWhen processing a PKCS#7 or S/MIME signed message, if the SignedData\ndigestAlgorithms field is present as an empty ASN.1 SET, OpenSSL may\nincorrectly free a caller-owned BIO during PKCS7_verify(). A subsequent\nuse of the BIO by the calling application results in a use-after-free\ncondition.\n\nIn the common case this occurs when the application later calls\nBIO_free() on the BIO originally passed to PKCS7_verify(). Depending\non allocator behavior and application-specific BIO usage patterns, this\nmay result in a crash or other memory corruption. In some application\ncontexts this may potentially be exploitable for remote code execution.\n\nApplications that process PKCS#7 or S/MIME signed messages using OpenSSL\nPKCS#7 APIs may be affected. Applications using the CMS APIs for this\nprocessing are not affected.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this\nissue, as the affected code is outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-18798","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-18798","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-18798","cwe":"CWE-415","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-18798","date":"2026-10-27","epss":0.01697,"percentile":0.77053}],"risk":1.2727499999999998,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-18798","description":"Issue summary: QUIC server may double free QRX (QUIC record layer RX) object when channel creation fails for initial packet.  Impact summary: Double free leads to heap corruption, which typically results in  termination of QUIC server process, leading to Denial of Service. There is so far no evidence that this double free is exploitable for remote code execution, thus it is considered highly improbable.  CWE: CWE-415: Double Free  Description: In order to validate initial packet, OpenSSL QUIC stack default packet handler (port_default_packet_handler()) creates a so-called QRX object. If the initial packet validates successfully with QRX object, the default packet handler proceeds to channel (connection object) creation. The QRX object used for packet validation is passed to port_bind_channel(), so it becomes part of the newly created connection. If port_bind_channel() fails, then it also frees the QRX object. Once port_bind_channel() returns, the port_default_packet_handler() detects the failure and proceeds to the error branch, where the same QRX object is freed for the second time.  The failure in port_bind_channel() function can be induced with a relatively low effort by a malformed (non RFC 9000 compliant) INITIAL packet. If the packet carries DCID (destination connection ID) which is shorter than 8 bytes, then port_bind_channel() jumps to the error path after ossl_quic_lcidm_enrol_odcid() detects that the DCID has invalid length.  FIPS impact: no The FIPS module is not affected, as the QUIC implementation is outside of the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-18798","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-18798","cwe":"CWE-415","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-18798","date":"2026-10-27","epss":0.01697,"percentile":0.77053}],"urls":["https://github.com/openssl/openssl/commit/70cebd74d3592f5272945501b58a60374c4e13af","https://github.com/openssl/openssl/commit/967582d5037f01a26b6d19beae19af62a1b15c3c","https://github.com/openssl/openssl/commit/a14a1deac403522fbeafabcb198503cf6caa7dc4","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-18798","description":"Issue summary: QUIC server may double free QRX (QUIC record layer RX) object\nwhen channel creation fails for initial packet.\n\nImpact summary: Double free leads to heap corruption, which typically results in \ntermination of QUIC server process, leading to Denial of Service. There is so\nfar no evidence that this double free is exploitable for remote code execution,\nthus it is considered highly improbable.\n\nCWE: CWE-415: Double Free\n\nDescription: In order to validate initial packet, OpenSSL QUIC stack default\npacket handler (port_default_packet_handler()) creates a so-called QRX object.\nIf the initial packet validates successfully with QRX object, the default packet\nhandler proceeds to channel (connection object) creation. The QRX object used\nfor packet validation is passed to port_bind_channel(), so it becomes part of\nthe newly created connection. If port_bind_channel() fails, then it also frees\nthe QRX object. Once port_bind_channel() returns, the port_default_packet_handler()\ndetects the failure and proceeds to the error branch, where the same QRX object is\nfreed for the second time.\n\nThe failure in port_bind_channel() function can be induced with a relatively\nlow effort by a malformed (non RFC 9000 compliant) INITIAL packet. If the packet\ncarries DCID (destination connection ID) which is shorter than 8 bytes, then\nport_bind_channel() jumps to the error path after ossl_quic_lcidm_enrol_odcid()\ndetects that the DCID has invalid length.\n\nFIPS impact: no\nThe FIPS module is not affected, as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-18798","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-18798","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-18798","cwe":"CWE-415","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-18798","date":"2026-10-27","epss":0.01697,"percentile":0.77053}],"risk":1.2727499999999998,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-18798","description":"Issue summary: QUIC server may double free QRX (QUIC record layer RX) object when channel creation fails for initial packet.  Impact summary: Double free leads to heap corruption, which typically results in  termination of QUIC server process, leading to Denial of Service. There is so far no evidence that this double free is exploitable for remote code execution, thus it is considered highly improbable.  CWE: CWE-415: Double Free  Description: In order to validate initial packet, OpenSSL QUIC stack default packet handler (port_default_packet_handler()) creates a so-called QRX object. If the initial packet validates successfully with QRX object, the default packet handler proceeds to channel (connection object) creation. The QRX object used for packet validation is passed to port_bind_channel(), so it becomes part of the newly created connection. If port_bind_channel() fails, then it also frees the QRX object. Once port_bind_channel() returns, the port_default_packet_handler() detects the failure and proceeds to the error branch, where the same QRX object is freed for the second time.  The failure in port_bind_channel() function can be induced with a relatively low effort by a malformed (non RFC 9000 compliant) INITIAL packet. If the packet carries DCID (destination connection ID) which is shorter than 8 bytes, then port_bind_channel() jumps to the error path after ossl_quic_lcidm_enrol_odcid() detects that the DCID has invalid length.  FIPS impact: no The FIPS module is not affected, as the QUIC implementation is outside of the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-18798","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-18798","cwe":"CWE-415","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-18798","date":"2026-10-27","epss":0.01697,"percentile":0.77053}],"urls":["https://github.com/openssl/openssl/commit/70cebd74d3592f5272945501b58a60374c4e13af","https://github.com/openssl/openssl/commit/967582d5037f01a26b6d19beae19af62a1b15c3c","https://github.com/openssl/openssl/commit/a14a1deac403522fbeafabcb198503cf6caa7dc4","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-18798","description":"Issue summary: QUIC server may double free QRX (QUIC record layer RX) object\nwhen channel creation fails for initial packet.\n\nImpact summary: Double free leads to heap corruption, which typically results in \ntermination of QUIC server process, leading to Denial of Service. There is so\nfar no evidence that this double free is exploitable for remote code execution,\nthus it is considered highly improbable.\n\nCWE: CWE-415: Double Free\n\nDescription: In order to validate initial packet, OpenSSL QUIC stack default\npacket handler (port_default_packet_handler()) creates a so-called QRX object.\nIf the initial packet validates successfully with QRX object, the default packet\nhandler proceeds to channel (connection object) creation. The QRX object used\nfor packet validation is passed to port_bind_channel(), so it becomes part of\nthe newly created connection. If port_bind_channel() fails, then it also frees\nthe QRX object. Once port_bind_channel() returns, the port_default_packet_handler()\ndetects the failure and proceeds to the error branch, where the same QRX object is\nfreed for the second time.\n\nThe failure in port_bind_channel() function can be induced with a relatively\nlow effort by a malformed (non RFC 9000 compliant) INITIAL packet. If the packet\ncarries DCID (destination connection ID) which is shorter than 8 bytes, then\nport_bind_channel() jumps to the error path after ossl_quic_lcidm_enrol_odcid()\ndetects that the DCID has invalid length.\n\nFIPS impact: no\nThe FIPS module is not affected, as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-18798","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-18798","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-18798","cwe":"CWE-415","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-18798","date":"2026-10-27","epss":0.01697,"percentile":0.77053}],"risk":1.2727499999999998,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-18798","description":"Issue summary: QUIC server may double free QRX (QUIC record layer RX) object when channel creation fails for initial packet.  Impact summary: Double free leads to heap corruption, which typically results in  termination of QUIC server process, leading to Denial of Service. There is so far no evidence that this double free is exploitable for remote code execution, thus it is considered highly improbable.  CWE: CWE-415: Double Free  Description: In order to validate initial packet, OpenSSL QUIC stack default packet handler (port_default_packet_handler()) creates a so-called QRX object. If the initial packet validates successfully with QRX object, the default packet handler proceeds to channel (connection object) creation. The QRX object used for packet validation is passed to port_bind_channel(), so it becomes part of the newly created connection. If port_bind_channel() fails, then it also frees the QRX object. Once port_bind_channel() returns, the port_default_packet_handler() detects the failure and proceeds to the error branch, where the same QRX object is freed for the second time.  The failure in port_bind_channel() function can be induced with a relatively low effort by a malformed (non RFC 9000 compliant) INITIAL packet. If the packet carries DCID (destination connection ID) which is shorter than 8 bytes, then port_bind_channel() jumps to the error path after ossl_quic_lcidm_enrol_odcid() detects that the DCID has invalid length.  FIPS impact: no The FIPS module is not affected, as the QUIC implementation is outside of the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-18798","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-18798","cwe":"CWE-415","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-18798","date":"2026-10-27","epss":0.01697,"percentile":0.77053}],"urls":["https://github.com/openssl/openssl/commit/70cebd74d3592f5272945501b58a60374c4e13af","https://github.com/openssl/openssl/commit/967582d5037f01a26b6d19beae19af62a1b15c3c","https://github.com/openssl/openssl/commit/a14a1deac403522fbeafabcb198503cf6caa7dc4","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-18798","description":"Issue summary: QUIC server may double free QRX (QUIC record layer RX) object\nwhen channel creation fails for initial packet.\n\nImpact summary: Double free leads to heap corruption, which typically results in \ntermination of QUIC server process, leading to Denial of Service. There is so\nfar no evidence that this double free is exploitable for remote code execution,\nthus it is considered highly improbable.\n\nCWE: CWE-415: Double Free\n\nDescription: In order to validate initial packet, OpenSSL QUIC stack default\npacket handler (port_default_packet_handler()) creates a so-called QRX object.\nIf the initial packet validates successfully with QRX object, the default packet\nhandler proceeds to channel (connection object) creation. The QRX object used\nfor packet validation is passed to port_bind_channel(), so it becomes part of\nthe newly created connection. If port_bind_channel() fails, then it also frees\nthe QRX object. Once port_bind_channel() returns, the port_default_packet_handler()\ndetects the failure and proceeds to the error branch, where the same QRX object is\nfreed for the second time.\n\nThe failure in port_bind_channel() function can be induced with a relatively\nlow effort by a malformed (non RFC 9000 compliant) INITIAL packet. If the packet\ncarries DCID (destination connection ID) which is shorter than 8 bytes, then\nport_bind_channel() jumps to the error path after ossl_quic_lcidm_enrol_odcid()\ndetects that the DCID has invalid length.\n\nFIPS impact: no\nThe FIPS module is not affected, as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-18798","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-18798","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-18798","cwe":"CWE-415","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-18798","date":"2026-10-27","epss":0.01697,"percentile":0.77053}],"risk":1.2727499999999998,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-18798","description":"Issue summary: QUIC server may double free QRX (QUIC record layer RX) object when channel creation fails for initial packet.  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The failure in port_bind_channel() function can be induced with a relatively low effort by a malformed (non RFC 9000 compliant) INITIAL packet. If the packet carries DCID (destination connection ID) which is shorter than 8 bytes, then port_bind_channel() jumps to the error path after ossl_quic_lcidm_enrol_odcid() detects that the DCID has invalid length.  FIPS impact: no The FIPS module is not affected, as the QUIC implementation is outside of the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-18798","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-18798","cwe":"CWE-415","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-18798","date":"2026-10-27","epss":0.01697,"percentile":0.77053}],"urls":["https://github.com/openssl/openssl/commit/70cebd74d3592f5272945501b58a60374c4e13af","https://github.com/openssl/openssl/commit/967582d5037f01a26b6d19beae19af62a1b15c3c","https://github.com/openssl/openssl/commit/a14a1deac403522fbeafabcb198503cf6caa7dc4","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-18798","description":"Issue summary: QUIC server may double free QRX (QUIC record layer RX) object\nwhen channel creation fails for initial packet.\n\nImpact summary: Double free leads to heap corruption, which typically results in \ntermination of QUIC server process, leading to Denial of Service. There is so\nfar no evidence that this double free is exploitable for remote code execution,\nthus it is considered highly improbable.\n\nCWE: CWE-415: Double Free\n\nDescription: In order to validate initial packet, OpenSSL QUIC stack default\npacket handler (port_default_packet_handler()) creates a so-called QRX object.\nIf the initial packet validates successfully with QRX object, the default packet\nhandler proceeds to channel (connection object) creation. The QRX object used\nfor packet validation is passed to port_bind_channel(), so it becomes part of\nthe newly created connection. If port_bind_channel() fails, then it also frees\nthe QRX object. Once port_bind_channel() returns, the port_default_packet_handler()\ndetects the failure and proceeds to the error branch, where the same QRX object is\nfreed for the second time.\n\nThe failure in port_bind_channel() function can be induced with a relatively\nlow effort by a malformed (non RFC 9000 compliant) INITIAL packet. If the packet\ncarries DCID (destination connection ID) which is shorter than 8 bytes, then\nport_bind_channel() jumps to the error path after ossl_quic_lcidm_enrol_odcid()\ndetects that the DCID has invalid length.\n\nFIPS impact: no\nThe FIPS module is not affected, as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-63076","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-63076","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63076","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63076","date":"2026-10-27","epss":0.01602,"percentile":0.75685}],"risk":1.2015,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-63076","description":"Issue summary: OpenSSL CMP password based protection verification only checks whether the protectionAlg parameter was not NULL and not its ASN.1 type, before treating it as a PBMParameter. A crafted message can contain a parameter of a different type, which is then dereferenced as an invalid pointer.  Impact summary: A remote, unauthenticated attacker can crash an application acting as a CMP server that accepts PBM-protected messages, or a CMP client talking to a malicious or intercepted CMP server, resulting in a Denial of Service.  CWE: CWE-476: NULL Pointer Dereference  Description: When verifying the password-based MAC protection of a CMP message, OpenSSL library reads the protectionAlg algorithm parameter with X509_ALGOR_get0(), which returns both the parameter type and its value pointer. The value is then cast to an ASN1_STRING and treated as the expected PBMParameter after only checking that pointer is not NULL. The parameter type returned by X509_ALGOR_get0() was never consulted.  This happens during protection verification, before any MAC is computed, so no knowledge of the PBM shared secret is required; the only precondition is that PBM verification is reachable. On the server side this is reached from OSSL_CMP_SRV_process_request() for any application that stands up a CMP server accepting PBM-protected messages, and on the client side from CMP response validation against a malicious or on-path (MITM) server. The reliable consequence is a denial of service; there is no memory disclosure, no controlled memory write, and no path to code execution. CMP is a specialized feature that an application must explicitly enable.  FIPS impact: no As the CMP code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE."},"relatedVulnerabilities":[{"id":"CVE-2026-63076","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63076","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63076","date":"2026-10-27","epss":0.01602,"percentile":0.75685}],"urls":["https://github.com/openssl/openssl/commit/37882aa2e0256e1072442a8f62f7db45b995c45b","https://github.com/openssl/openssl/commit/a17cc8d612ecff6d94a9b7ca8b5283ddf5ff570e","https://github.com/openssl/openssl/commit/a1f348ccb328c3afbd4ba6883f9b7c813c043259","https://github.com/openssl/openssl/commit/a7af46a92d0ce19a90e669ef56d2576a07924226","https://github.com/openssl/openssl/commit/cdacfff557389abfa9e4615abded2ec984517d6c","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-63076","description":"Issue summary: OpenSSL CMP password based protection verification only\nchecks whether the protectionAlg parameter was not NULL and not its\nASN.1 type, before treating it as a PBMParameter. A crafted message can\ncontain a parameter of a different type, which is then dereferenced as an\ninvalid pointer.\n\nImpact summary: A remote, unauthenticated attacker can crash an application\nacting as a CMP server that accepts PBM-protected messages, or a CMP client\ntalking to a malicious or intercepted CMP server, resulting in a Denial of\nService.\n\nCWE: CWE-476: NULL Pointer Dereference\n\nDescription: When verifying the password-based MAC protection of a CMP\nmessage, OpenSSL library reads the protectionAlg algorithm parameter with\nX509_ALGOR_get0(), which returns both the parameter type and its value\npointer. The value is then cast to an ASN1_STRING and treated as the\nexpected PBMParameter after only checking that pointer is not NULL. The\nparameter type returned by X509_ALGOR_get0() was never consulted.\n\nThis happens during protection verification, before any MAC is computed, so\nno knowledge of the PBM shared secret is required; the only precondition is\nthat PBM verification is reachable. On the server side this is reached from\nOSSL_CMP_SRV_process_request() for any application that stands up a CMP\nserver accepting PBM-protected messages, and on the client side from CMP\nresponse validation against a malicious or on-path (MITM) server. The\nreliable consequence is a denial of service; there is no memory disclosure,\nno controlled memory write, and no path to code execution. CMP is a\nspecialized feature that an application must explicitly enable.\n\nFIPS impact: no\nAs the CMP code lives outside the FIPS module boundary, no FIPS modules\nare affected by this CVE."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-63076","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-63076","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63076","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63076","date":"2026-10-27","epss":0.01602,"percentile":0.75685}],"risk":1.2015,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-63076","description":"Issue summary: OpenSSL CMP password based protection verification only checks whether the protectionAlg parameter was not NULL and not its ASN.1 type, before treating it as a PBMParameter. A crafted message can contain a parameter of a different type, which is then dereferenced as an invalid pointer.  Impact summary: A remote, unauthenticated attacker can crash an application acting as a CMP server that accepts PBM-protected messages, or a CMP client talking to a malicious or intercepted CMP server, resulting in a Denial of Service.  CWE: CWE-476: NULL Pointer Dereference  Description: When verifying the password-based MAC protection of a CMP message, OpenSSL library reads the protectionAlg algorithm parameter with X509_ALGOR_get0(), which returns both the parameter type and its value pointer. The value is then cast to an ASN1_STRING and treated as the expected PBMParameter after only checking that pointer is not NULL. The parameter type returned by X509_ALGOR_get0() was never consulted.  This happens during protection verification, before any MAC is computed, so no knowledge of the PBM shared secret is required; the only precondition is that PBM verification is reachable. On the server side this is reached from OSSL_CMP_SRV_process_request() for any application that stands up a CMP server accepting PBM-protected messages, and on the client side from CMP response validation against a malicious or on-path (MITM) server. The reliable consequence is a denial of service; there is no memory disclosure, no controlled memory write, and no path to code execution. CMP is a specialized feature that an application must explicitly enable.  FIPS impact: no As the CMP code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE."},"relatedVulnerabilities":[{"id":"CVE-2026-63076","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63076","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63076","date":"2026-10-27","epss":0.01602,"percentile":0.75685}],"urls":["https://github.com/openssl/openssl/commit/37882aa2e0256e1072442a8f62f7db45b995c45b","https://github.com/openssl/openssl/commit/a17cc8d612ecff6d94a9b7ca8b5283ddf5ff570e","https://github.com/openssl/openssl/commit/a1f348ccb328c3afbd4ba6883f9b7c813c043259","https://github.com/openssl/openssl/commit/a7af46a92d0ce19a90e669ef56d2576a07924226","https://github.com/openssl/openssl/commit/cdacfff557389abfa9e4615abded2ec984517d6c","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-63076","description":"Issue summary: OpenSSL CMP password based protection verification only\nchecks whether the protectionAlg parameter was not NULL and not its\nASN.1 type, before treating it as a PBMParameter. A crafted message can\ncontain a parameter of a different type, which is then dereferenced as an\ninvalid pointer.\n\nImpact summary: A remote, unauthenticated attacker can crash an application\nacting as a CMP server that accepts PBM-protected messages, or a CMP client\ntalking to a malicious or intercepted CMP server, resulting in a Denial of\nService.\n\nCWE: CWE-476: NULL Pointer Dereference\n\nDescription: When verifying the password-based MAC protection of a CMP\nmessage, OpenSSL library reads the protectionAlg algorithm parameter with\nX509_ALGOR_get0(), which returns both the parameter type and its value\npointer. The value is then cast to an ASN1_STRING and treated as the\nexpected PBMParameter after only checking that pointer is not NULL. The\nparameter type returned by X509_ALGOR_get0() was never consulted.\n\nThis happens during protection verification, before any MAC is computed, so\nno knowledge of the PBM shared secret is required; the only precondition is\nthat PBM verification is reachable. On the server side this is reached from\nOSSL_CMP_SRV_process_request() for any application that stands up a CMP\nserver accepting PBM-protected messages, and on the client side from CMP\nresponse validation against a malicious or on-path (MITM) server. The\nreliable consequence is a denial of service; there is no memory disclosure,\nno controlled memory write, and no path to code execution. CMP is a\nspecialized feature that an application must explicitly enable.\n\nFIPS impact: no\nAs the CMP code lives outside the FIPS module boundary, no FIPS modules\nare affected by this CVE."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-63076","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-63076","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63076","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63076","date":"2026-10-27","epss":0.01602,"percentile":0.75685}],"risk":1.2015,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-63076","description":"Issue summary: OpenSSL CMP password based protection verification only checks whether the protectionAlg parameter was not NULL and not its ASN.1 type, before treating it as a PBMParameter. A crafted message can contain a parameter of a different type, which is then dereferenced as an invalid pointer.  Impact summary: A remote, unauthenticated attacker can crash an application acting as a CMP server that accepts PBM-protected messages, or a CMP client talking to a malicious or intercepted CMP server, resulting in a Denial of Service.  CWE: CWE-476: NULL Pointer Dereference  Description: When verifying the password-based MAC protection of a CMP message, OpenSSL library reads the protectionAlg algorithm parameter with X509_ALGOR_get0(), which returns both the parameter type and its value pointer. The value is then cast to an ASN1_STRING and treated as the expected PBMParameter after only checking that pointer is not NULL. The parameter type returned by X509_ALGOR_get0() was never consulted.  This happens during protection verification, before any MAC is computed, so no knowledge of the PBM shared secret is required; the only precondition is that PBM verification is reachable. On the server side this is reached from OSSL_CMP_SRV_process_request() for any application that stands up a CMP server accepting PBM-protected messages, and on the client side from CMP response validation against a malicious or on-path (MITM) server. The reliable consequence is a denial of service; there is no memory disclosure, no controlled memory write, and no path to code execution. CMP is a specialized feature that an application must explicitly enable.  FIPS impact: no As the CMP code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE."},"relatedVulnerabilities":[{"id":"CVE-2026-63076","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63076","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63076","date":"2026-10-27","epss":0.01602,"percentile":0.75685}],"urls":["https://github.com/openssl/openssl/commit/37882aa2e0256e1072442a8f62f7db45b995c45b","https://github.com/openssl/openssl/commit/a17cc8d612ecff6d94a9b7ca8b5283ddf5ff570e","https://github.com/openssl/openssl/commit/a1f348ccb328c3afbd4ba6883f9b7c813c043259","https://github.com/openssl/openssl/commit/a7af46a92d0ce19a90e669ef56d2576a07924226","https://github.com/openssl/openssl/commit/cdacfff557389abfa9e4615abded2ec984517d6c","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-63076","description":"Issue summary: OpenSSL CMP password based protection verification only\nchecks whether the protectionAlg parameter was not NULL and not its\nASN.1 type, before treating it as a PBMParameter. A crafted message can\ncontain a parameter of a different type, which is then dereferenced as an\ninvalid pointer.\n\nImpact summary: A remote, unauthenticated attacker can crash an application\nacting as a CMP server that accepts PBM-protected messages, or a CMP client\ntalking to a malicious or intercepted CMP server, resulting in a Denial of\nService.\n\nCWE: CWE-476: NULL Pointer Dereference\n\nDescription: When verifying the password-based MAC protection of a CMP\nmessage, OpenSSL library reads the protectionAlg algorithm parameter with\nX509_ALGOR_get0(), which returns both the parameter type and its value\npointer. The value is then cast to an ASN1_STRING and treated as the\nexpected PBMParameter after only checking that pointer is not NULL. The\nparameter type returned by X509_ALGOR_get0() was never consulted.\n\nThis happens during protection verification, before any MAC is computed, so\nno knowledge of the PBM shared secret is required; the only precondition is\nthat PBM verification is reachable. On the server side this is reached from\nOSSL_CMP_SRV_process_request() for any application that stands up a CMP\nserver accepting PBM-protected messages, and on the client side from CMP\nresponse validation against a malicious or on-path (MITM) server. The\nreliable consequence is a denial of service; there is no memory disclosure,\nno controlled memory write, and no path to code execution. CMP is a\nspecialized feature that an application must explicitly enable.\n\nFIPS impact: no\nAs the CMP code lives outside the FIPS module boundary, no FIPS modules\nare affected by this CVE."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-63076","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-63076","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63076","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63076","date":"2026-10-27","epss":0.01602,"percentile":0.75685}],"risk":1.2015,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-63076","description":"Issue summary: OpenSSL CMP password based protection verification only checks whether the protectionAlg parameter was not NULL and not its ASN.1 type, before treating it as a PBMParameter. A crafted message can contain a parameter of a different type, which is then dereferenced as an invalid pointer.  Impact summary: A remote, unauthenticated attacker can crash an application acting as a CMP server that accepts PBM-protected messages, or a CMP client talking to a malicious or intercepted CMP server, resulting in a Denial of Service.  CWE: CWE-476: NULL Pointer Dereference  Description: When verifying the password-based MAC protection of a CMP message, OpenSSL library reads the protectionAlg algorithm parameter with X509_ALGOR_get0(), which returns both the parameter type and its value pointer. The value is then cast to an ASN1_STRING and treated as the expected PBMParameter after only checking that pointer is not NULL. The parameter type returned by X509_ALGOR_get0() was never consulted.  This happens during protection verification, before any MAC is computed, so no knowledge of the PBM shared secret is required; the only precondition is that PBM verification is reachable. On the server side this is reached from OSSL_CMP_SRV_process_request() for any application that stands up a CMP server accepting PBM-protected messages, and on the client side from CMP response validation against a malicious or on-path (MITM) server. The reliable consequence is a denial of service; there is no memory disclosure, no controlled memory write, and no path to code execution. CMP is a specialized feature that an application must explicitly enable.  FIPS impact: no As the CMP code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE."},"relatedVulnerabilities":[{"id":"CVE-2026-63076","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63076","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63076","date":"2026-10-27","epss":0.01602,"percentile":0.75685}],"urls":["https://github.com/openssl/openssl/commit/37882aa2e0256e1072442a8f62f7db45b995c45b","https://github.com/openssl/openssl/commit/a17cc8d612ecff6d94a9b7ca8b5283ddf5ff570e","https://github.com/openssl/openssl/commit/a1f348ccb328c3afbd4ba6883f9b7c813c043259","https://github.com/openssl/openssl/commit/a7af46a92d0ce19a90e669ef56d2576a07924226","https://github.com/openssl/openssl/commit/cdacfff557389abfa9e4615abded2ec984517d6c","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-63076","description":"Issue summary: OpenSSL CMP password based protection verification only\nchecks whether the protectionAlg parameter was not NULL and not its\nASN.1 type, before treating it as a PBMParameter. A crafted message can\ncontain a parameter of a different type, which is then dereferenced as an\ninvalid pointer.\n\nImpact summary: A remote, unauthenticated attacker can crash an application\nacting as a CMP server that accepts PBM-protected messages, or a CMP client\ntalking to a malicious or intercepted CMP server, resulting in a Denial of\nService.\n\nCWE: CWE-476: NULL Pointer Dereference\n\nDescription: When verifying the password-based MAC protection of a CMP\nmessage, OpenSSL library reads the protectionAlg algorithm parameter with\nX509_ALGOR_get0(), which returns both the parameter type and its value\npointer. The value is then cast to an ASN1_STRING and treated as the\nexpected PBMParameter after only checking that pointer is not NULL. The\nparameter type returned by X509_ALGOR_get0() was never consulted.\n\nThis happens during protection verification, before any MAC is computed, so\nno knowledge of the PBM shared secret is required; the only precondition is\nthat PBM verification is reachable. On the server side this is reached from\nOSSL_CMP_SRV_process_request() for any application that stands up a CMP\nserver accepting PBM-protected messages, and on the client side from CMP\nresponse validation against a malicious or on-path (MITM) server. The\nreliable consequence is a denial of service; there is no memory disclosure,\nno controlled memory write, and no path to code execution. CMP is a\nspecialized feature that an application must explicitly enable.\n\nFIPS impact: no\nAs the CMP code lives outside the FIPS module boundary, no FIPS modules\nare affected by this CVE."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-63073","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-63073","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":9.8,"impactScore":5.9,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63073","cwe":"CWE-134","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63073","date":"2026-10-27","epss":0.01159,"percentile":0.66946}],"risk":1.08946,"urls":[],"severity":"Critical","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-63073","description":"Issue summary: OpenSSL CMP response validation passed an unexpected response sender distinguished name directly as the format string to `ERR_raise_data()`.  Impact summary: A malicious or intercepted CMP endpoint can crash a CMP client that enforces an expected sender or uses a pinned server certificate whose subject becomes the default expected sender.  CWE: CWE-134 (Use of Externally-Controlled Format String)  Description: When validating a received CMP message, ossl_cmp_msg_check_update() converts the peer-supplied sender distinguished name with X509_NAME_oneline() and passes it directly as the format argument to ERR_raise_data(). Percent characters survive the conversion, so a sender DN such as \"CN=%s%n\" reaches BIO_vsnprintf() as an attacker-controlled format string with no matching variadic arguments. This path is only reached when the caller configures an expected sender or pins a server certificate, which is the normal configuration for a CMP client validating server responses.  Since the attacker controls the format string but none of the variadic arguments, such specifiers as %s and %n dereference or write through unrelated stack contents and crash the client. The reliable consequence is a denial of service, when the response comes from a malicious or intercepted CMP endpoint. There is no controlled memory write, arbitrary-address read, or reliable path to remote code execution.  FIPS impact: no  No FIPS modules are affected by this issue, as the CMP protocol implementation is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-63073","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":9.8,"impactScore":5.9,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63073","cwe":"CWE-134","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63073","date":"2026-10-27","epss":0.01159,"percentile":0.66946}],"urls":["https://github.com/openssl/openssl/commit/0cc20b322639919aa423e90799d9a57c3b4b76ca","https://github.com/openssl/openssl/commit/6a0acc072b4d37a7cac1252a29c1ce1f00c5ec29","https://github.com/openssl/openssl/commit/7eb2e3ec9d1d4f35c8022fccd4b03398b3f33e21","https://github.com/openssl/openssl/commit/a7e5a6eea8fd3ccca6b6fbba031a5fbf8a3d93b4","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"Critical","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-63073","description":"Issue summary: OpenSSL CMP response validation passed an unexpected response\nsender distinguished name directly as the format string to `ERR_raise_data()`.\n\nImpact summary: A malicious or intercepted CMP endpoint can crash a CMP client\nthat enforces an expected sender or uses a pinned server certificate whose\nsubject becomes the default expected sender.\n\nCWE: CWE-134 (Use of Externally-Controlled Format String)\n\nDescription: When validating a received CMP message, ossl_cmp_msg_check_update()\nconverts the peer-supplied sender distinguished name with X509_NAME_oneline()\nand passes it directly as the format argument to ERR_raise_data(). Percent\ncharacters survive the conversion, so a sender DN such as \"CN=%s%n\" reaches\nBIO_vsnprintf() as an attacker-controlled format string with no matching variadic\narguments. This path is only reached when the caller configures an expected\nsender or pins a server certificate, which is the normal configuration for a\nCMP client validating server responses.\n\nSince the attacker controls the format string but none of the variadic\narguments, such specifiers as %s and %n dereference or write through unrelated\nstack contents and crash the client. The reliable consequence is a denial of\nservice, when the response comes from a malicious or intercepted CMP endpoint.\nThere is no controlled memory write, arbitrary-address read, or reliable path\nto remote code execution.\n\nFIPS impact: no\n\nNo FIPS modules are affected by this issue, as the CMP protocol\nimplementation is outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-63073","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-63073","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":9.8,"impactScore":5.9,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63073","cwe":"CWE-134","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63073","date":"2026-10-27","epss":0.01159,"percentile":0.66946}],"risk":1.08946,"urls":[],"severity":"Critical","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-63073","description":"Issue summary: OpenSSL CMP response validation passed an unexpected response sender distinguished name directly as the format string to `ERR_raise_data()`.  Impact summary: A malicious or intercepted CMP endpoint can crash a CMP client that enforces an expected sender or uses a pinned server certificate whose subject becomes the default expected sender.  CWE: CWE-134 (Use of Externally-Controlled Format String)  Description: When validating a received CMP message, ossl_cmp_msg_check_update() converts the peer-supplied sender distinguished name with X509_NAME_oneline() and passes it directly as the format argument to ERR_raise_data(). Percent characters survive the conversion, so a sender DN such as \"CN=%s%n\" reaches BIO_vsnprintf() as an attacker-controlled format string with no matching variadic arguments. This path is only reached when the caller configures an expected sender or pins a server certificate, which is the normal configuration for a CMP client validating server responses.  Since the attacker controls the format string but none of the variadic arguments, such specifiers as %s and %n dereference or write through unrelated stack contents and crash the client. The reliable consequence is a denial of service, when the response comes from a malicious or intercepted CMP endpoint. There is no controlled memory write, arbitrary-address read, or reliable path to remote code execution.  FIPS impact: no  No FIPS modules are affected by this issue, as the CMP protocol implementation is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-63073","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":9.8,"impactScore":5.9,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63073","cwe":"CWE-134","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63073","date":"2026-10-27","epss":0.01159,"percentile":0.66946}],"urls":["https://github.com/openssl/openssl/commit/0cc20b322639919aa423e90799d9a57c3b4b76ca","https://github.com/openssl/openssl/commit/6a0acc072b4d37a7cac1252a29c1ce1f00c5ec29","https://github.com/openssl/openssl/commit/7eb2e3ec9d1d4f35c8022fccd4b03398b3f33e21","https://github.com/openssl/openssl/commit/a7e5a6eea8fd3ccca6b6fbba031a5fbf8a3d93b4","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"Critical","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-63073","description":"Issue summary: OpenSSL CMP response validation passed an unexpected response\nsender distinguished name directly as the format string to `ERR_raise_data()`.\n\nImpact summary: A malicious or intercepted CMP endpoint can crash a CMP client\nthat enforces an expected sender or uses a pinned server certificate whose\nsubject becomes the default expected sender.\n\nCWE: CWE-134 (Use of Externally-Controlled Format String)\n\nDescription: When validating a received CMP message, ossl_cmp_msg_check_update()\nconverts the peer-supplied sender distinguished name with X509_NAME_oneline()\nand passes it directly as the format argument to ERR_raise_data(). Percent\ncharacters survive the conversion, so a sender DN such as \"CN=%s%n\" reaches\nBIO_vsnprintf() as an attacker-controlled format string with no matching variadic\narguments. This path is only reached when the caller configures an expected\nsender or pins a server certificate, which is the normal configuration for a\nCMP client validating server responses.\n\nSince the attacker controls the format string but none of the variadic\narguments, such specifiers as %s and %n dereference or write through unrelated\nstack contents and crash the client. The reliable consequence is a denial of\nservice, when the response comes from a malicious or intercepted CMP endpoint.\nThere is no controlled memory write, arbitrary-address read, or reliable path\nto remote code execution.\n\nFIPS impact: no\n\nNo FIPS modules are affected by this issue, as the CMP protocol\nimplementation is outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-63073","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-63073","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":9.8,"impactScore":5.9,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63073","cwe":"CWE-134","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63073","date":"2026-10-27","epss":0.01159,"percentile":0.66946}],"risk":1.08946,"urls":[],"severity":"Critical","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-63073","description":"Issue summary: OpenSSL CMP response validation passed an unexpected response sender distinguished name directly as the format string to `ERR_raise_data()`.  Impact summary: A malicious or intercepted CMP endpoint can crash a CMP client that enforces an expected sender or uses a pinned server certificate whose subject becomes the default expected sender.  CWE: CWE-134 (Use of Externally-Controlled Format String)  Description: When validating a received CMP message, ossl_cmp_msg_check_update() converts the peer-supplied sender distinguished name with X509_NAME_oneline() and passes it directly as the format argument to ERR_raise_data(). Percent characters survive the conversion, so a sender DN such as \"CN=%s%n\" reaches BIO_vsnprintf() as an attacker-controlled format string with no matching variadic arguments. This path is only reached when the caller configures an expected sender or pins a server certificate, which is the normal configuration for a CMP client validating server responses.  Since the attacker controls the format string but none of the variadic arguments, such specifiers as %s and %n dereference or write through unrelated stack contents and crash the client. The reliable consequence is a denial of service, when the response comes from a malicious or intercepted CMP endpoint. There is no controlled memory write, arbitrary-address read, or reliable path to remote code execution.  FIPS impact: no  No FIPS modules are affected by this issue, as the CMP protocol implementation is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-63073","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":9.8,"impactScore":5.9,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63073","cwe":"CWE-134","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63073","date":"2026-10-27","epss":0.01159,"percentile":0.66946}],"urls":["https://github.com/openssl/openssl/commit/0cc20b322639919aa423e90799d9a57c3b4b76ca","https://github.com/openssl/openssl/commit/6a0acc072b4d37a7cac1252a29c1ce1f00c5ec29","https://github.com/openssl/openssl/commit/7eb2e3ec9d1d4f35c8022fccd4b03398b3f33e21","https://github.com/openssl/openssl/commit/a7e5a6eea8fd3ccca6b6fbba031a5fbf8a3d93b4","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"Critical","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-63073","description":"Issue summary: OpenSSL CMP response validation passed an unexpected response\nsender distinguished name directly as the format string to `ERR_raise_data()`.\n\nImpact summary: A malicious or intercepted CMP endpoint can crash a CMP client\nthat enforces an expected sender or uses a pinned server certificate whose\nsubject becomes the default expected sender.\n\nCWE: CWE-134 (Use of Externally-Controlled Format String)\n\nDescription: When validating a received CMP message, ossl_cmp_msg_check_update()\nconverts the peer-supplied sender distinguished name with X509_NAME_oneline()\nand passes it directly as the format argument to ERR_raise_data(). Percent\ncharacters survive the conversion, so a sender DN such as \"CN=%s%n\" reaches\nBIO_vsnprintf() as an attacker-controlled format string with no matching variadic\narguments. This path is only reached when the caller configures an expected\nsender or pins a server certificate, which is the normal configuration for a\nCMP client validating server responses.\n\nSince the attacker controls the format string but none of the variadic\narguments, such specifiers as %s and %n dereference or write through unrelated\nstack contents and crash the client. The reliable consequence is a denial of\nservice, when the response comes from a malicious or intercepted CMP endpoint.\nThere is no controlled memory write, arbitrary-address read, or reliable path\nto remote code execution.\n\nFIPS impact: no\n\nNo FIPS modules are affected by this issue, as the CMP protocol\nimplementation is outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-63073","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-63073","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":9.8,"impactScore":5.9,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63073","cwe":"CWE-134","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63073","date":"2026-10-27","epss":0.01159,"percentile":0.66946}],"risk":1.08946,"urls":[],"severity":"Critical","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-63073","description":"Issue summary: OpenSSL CMP response validation passed an unexpected response sender distinguished name directly as the format string to `ERR_raise_data()`.  Impact summary: A malicious or intercepted CMP endpoint can crash a CMP client that enforces an expected sender or uses a pinned server certificate whose subject becomes the default expected sender.  CWE: CWE-134 (Use of Externally-Controlled Format String)  Description: When validating a received CMP message, ossl_cmp_msg_check_update() converts the peer-supplied sender distinguished name with X509_NAME_oneline() and passes it directly as the format argument to ERR_raise_data(). Percent characters survive the conversion, so a sender DN such as \"CN=%s%n\" reaches BIO_vsnprintf() as an attacker-controlled format string with no matching variadic arguments. This path is only reached when the caller configures an expected sender or pins a server certificate, which is the normal configuration for a CMP client validating server responses.  Since the attacker controls the format string but none of the variadic arguments, such specifiers as %s and %n dereference or write through unrelated stack contents and crash the client. The reliable consequence is a denial of service, when the response comes from a malicious or intercepted CMP endpoint. There is no controlled memory write, arbitrary-address read, or reliable path to remote code execution.  FIPS impact: no  No FIPS modules are affected by this issue, as the CMP protocol implementation is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-63073","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":9.8,"impactScore":5.9,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63073","cwe":"CWE-134","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63073","date":"2026-10-27","epss":0.01159,"percentile":0.66946}],"urls":["https://github.com/openssl/openssl/commit/0cc20b322639919aa423e90799d9a57c3b4b76ca","https://github.com/openssl/openssl/commit/6a0acc072b4d37a7cac1252a29c1ce1f00c5ec29","https://github.com/openssl/openssl/commit/7eb2e3ec9d1d4f35c8022fccd4b03398b3f33e21","https://github.com/openssl/openssl/commit/a7e5a6eea8fd3ccca6b6fbba031a5fbf8a3d93b4","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"Critical","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-63073","description":"Issue summary: OpenSSL CMP response validation passed an unexpected response\nsender distinguished name directly as the format string to `ERR_raise_data()`.\n\nImpact summary: A malicious or intercepted CMP endpoint can crash a CMP client\nthat enforces an expected sender or uses a pinned server certificate whose\nsubject becomes the default expected sender.\n\nCWE: CWE-134 (Use of Externally-Controlled Format String)\n\nDescription: When validating a received CMP message, ossl_cmp_msg_check_update()\nconverts the peer-supplied sender distinguished name with X509_NAME_oneline()\nand passes it directly as the format argument to ERR_raise_data(). Percent\ncharacters survive the conversion, so a sender DN such as \"CN=%s%n\" reaches\nBIO_vsnprintf() as an attacker-controlled format string with no matching variadic\narguments. This path is only reached when the caller configures an expected\nsender or pins a server certificate, which is the normal configuration for a\nCMP client validating server responses.\n\nSince the attacker controls the format string but none of the variadic\narguments, such specifiers as %s and %n dereference or write through unrelated\nstack contents and crash the client. The reliable consequence is a denial of\nservice, when the response comes from a malicious or intercepted CMP endpoint.\nThere is no controlled memory write, arbitrary-address read, or reliable path\nto remote code execution.\n\nFIPS impact: no\n\nNo FIPS modules are affected by this issue, as the CMP protocol\nimplementation is outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-34182","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-34182","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","metrics":{"baseScore":9.1,"impactScore":5.2,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-34182","cwe":"CWE-354","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-34182","date":"2026-10-27","epss":0.01057,"percentile":0.64278}],"risk":0.9565849999999999,"urls":[],"severity":"Critical","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-34182","description":"Issue Summary: Cryptographic Message Services (CMS) processing fails to perform sufficient input validation on the cipher and tag length fields of AuthEnvelopedData containers, leading to various potential compromises.  Impact Summary: Attackers making use of these vulnerabilities may achieve key-equivalent functionality for a given CMS recipient and/or bypass integrity validation for a given message.  In one use case, an attacker may send a CMS message containing AuthEnvelopedData with the cipher specified as a non-AEAD cipher.  OpenSSL erroneously allows this selection, and attempts to decrypt and validate the message.  An on-path attacker who captures one legitimate AES-GCM AuthEnvelopedData addressed to the victim can re-emit it with the recipientInfos set left byte-for-byte intact, so the victim's private key still unwraps the genuine CEK (the content-encryption key), but with the inner OID rewritten to AES-256-OFB (Output Feedback Mode, an unauthenticated keystream mode) and with an attacker-chosen IV and ciphertext. The victim initializes AES-256-OFB under the real CEK, never consults the MAC field, and CMS_decrypt() returns success.  If the application under attack responds to the attacker with any indicator showing success or failure of the decryption effort, it is possible for the attacker to use this as an oracle to obtain key equivalent functionality for the CEK used for the chosen recipient of the message.  In another use case, an attacker can reduce the tag length of the chosen AEAD cipher for a given AuthEnvelopedData container to be a single byte long, allowing an attacker to brute force CMS decryption, producing an integrity bypass for applications that trust CMS_decrypt() to reject modified content.  The FIPS modules are not affected by this issue."},"relatedVulnerabilities":[{"id":"CVE-2026-34182","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","metrics":{"baseScore":9.1,"impactScore":5.2,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-34182","cwe":"CWE-354","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-34182","date":"2026-10-27","epss":0.01057,"percentile":0.64278}],"urls":["https://github.com/openssl/openssl/commit/03c1f4d45fb963aee7d5833390c507cd290182bc","https://github.com/openssl/openssl/commit/439ed7d2c0962ce964482727264668bf277c333f","https://github.com/openssl/openssl/commit/7947e6a81eb8776802f159fb6762cb7fcf7e34c7","https://github.com/openssl/openssl/commit/9fd97f8cfdc2c0be214998de3b2b55c8edf6c7ac","https://github.com/openssl/openssl/commit/d2ca86bcd43e4f17d899f347101766b6107676e0","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"Critical","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-34182","description":"Issue Summary: Cryptographic Message Services (CMS) processing fails to perform\nsufficient input validation on the cipher and tag length fields of\nAuthEnvelopedData containers, leading to various potential compromises.\n\nImpact Summary: Attackers making use of these vulnerabilities may achieve\nkey-equivalent functionality for a given CMS recipient and/or bypass integrity\nvalidation for a given message.\n\nIn one use case, an attacker may send a CMS message containing\nAuthEnvelopedData with the cipher specified as a non-AEAD cipher.  OpenSSL\nerroneously allows this selection, and attempts to decrypt and validate the\nmessage.\n\nAn on-path attacker who captures one legitimate AES-GCM AuthEnvelopedData\naddressed to the victim can re-emit it with the recipientInfos set left\nbyte-for-byte intact, so the victim's private key still unwraps the genuine CEK\n(the content-encryption key), but with the inner OID rewritten to AES-256-OFB\n(Output Feedback Mode, an unauthenticated keystream mode) and with an\nattacker-chosen IV and ciphertext. The victim initializes AES-256-OFB under the\nreal CEK, never consults the MAC field, and CMS_decrypt() returns success.\n\nIf the application under attack responds to the attacker with any indicator\nshowing success or failure of the decryption effort, it is possible for the\nattacker to use this as an oracle to obtain key equivalent functionality for the\nCEK used for the chosen recipient of the message.\n\nIn another use case, an attacker can reduce the tag length of the chosen AEAD\ncipher for a given AuthEnvelopedData container to be a single byte long,\nallowing an attacker to brute force CMS decryption, producing an integrity\nbypass for applications that trust CMS_decrypt() to reject modified content.\n\nThe FIPS modules are not affected by this issue."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-34182","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-34182","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","metrics":{"baseScore":9.1,"impactScore":5.2,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-34182","cwe":"CWE-354","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-34182","date":"2026-10-27","epss":0.01057,"percentile":0.64278}],"risk":0.9565849999999999,"urls":[],"severity":"Critical","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-34182","description":"Issue Summary: Cryptographic Message Services (CMS) processing fails to perform sufficient input validation on the cipher and tag length fields of AuthEnvelopedData containers, leading to various potential compromises.  Impact Summary: Attackers making use of these vulnerabilities may achieve key-equivalent functionality for a given CMS recipient and/or bypass integrity validation for a given message.  In one use case, an attacker may send a CMS message containing AuthEnvelopedData with the cipher specified as a non-AEAD cipher.  OpenSSL erroneously allows this selection, and attempts to decrypt and validate the message.  An on-path attacker who captures one legitimate AES-GCM AuthEnvelopedData addressed to the victim can re-emit it with the recipientInfos set left byte-for-byte intact, so the victim's private key still unwraps the genuine CEK (the content-encryption key), but with the inner OID rewritten to AES-256-OFB (Output Feedback Mode, an unauthenticated keystream mode) and with an attacker-chosen IV and ciphertext. The victim initializes AES-256-OFB under the real CEK, never consults the MAC field, and CMS_decrypt() returns success.  If the application under attack responds to the attacker with any indicator showing success or failure of the decryption effort, it is possible for the attacker to use this as an oracle to obtain key equivalent functionality for the CEK used for the chosen recipient of the message.  In another use case, an attacker can reduce the tag length of the chosen AEAD cipher for a given AuthEnvelopedData container to be a single byte long, allowing an attacker to brute force CMS decryption, producing an integrity bypass for applications that trust CMS_decrypt() to reject modified content.  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OpenSSL\nerroneously allows this selection, and attempts to decrypt and validate the\nmessage.\n\nAn on-path attacker who captures one legitimate AES-GCM AuthEnvelopedData\naddressed to the victim can re-emit it with the recipientInfos set left\nbyte-for-byte intact, so the victim's private key still unwraps the genuine CEK\n(the content-encryption key), but with the inner OID rewritten to AES-256-OFB\n(Output Feedback Mode, an unauthenticated keystream mode) and with an\nattacker-chosen IV and ciphertext. The victim initializes AES-256-OFB under the\nreal CEK, never consults the MAC field, and CMS_decrypt() returns success.\n\nIf the application under attack responds to the attacker with any indicator\nshowing success or failure of the decryption effort, it is possible for the\nattacker to use this as an oracle to obtain key equivalent functionality for the\nCEK used for the chosen recipient of the message.\n\nIn another use case, an attacker can reduce the tag length of the chosen AEAD\ncipher for a given AuthEnvelopedData container to be a single byte long,\nallowing an attacker to brute force CMS decryption, producing an integrity\nbypass for applications that trust CMS_decrypt() to reject modified content.\n\nThe FIPS modules are not affected by this issue."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-34182","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-34182","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","metrics":{"baseScore":9.1,"impactScore":5.2,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-34182","cwe":"CWE-354","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-34182","date":"2026-10-27","epss":0.01057,"percentile":0.64278}],"risk":0.9565849999999999,"urls":[],"severity":"Critical","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-34182","description":"Issue Summary: Cryptographic Message Services (CMS) processing fails to perform sufficient input validation on the cipher and tag length fields of AuthEnvelopedData containers, leading to various potential compromises.  Impact Summary: Attackers making use of these vulnerabilities may achieve key-equivalent functionality for a given CMS recipient and/or bypass integrity validation for a given message.  In one use case, an attacker may send a CMS message containing AuthEnvelopedData with the cipher specified as a non-AEAD cipher.  OpenSSL erroneously allows this selection, and attempts to decrypt and validate the message.  An on-path attacker who captures one legitimate AES-GCM AuthEnvelopedData addressed to the victim can re-emit it with the recipientInfos set left byte-for-byte intact, so the victim's private key still unwraps the genuine CEK (the content-encryption key), but with the inner OID rewritten to AES-256-OFB (Output Feedback Mode, an unauthenticated keystream mode) and with an attacker-chosen IV and ciphertext. The victim initializes AES-256-OFB under the real CEK, never consults the MAC field, and CMS_decrypt() returns success.  If the application under attack responds to the attacker with any indicator showing success or failure of the decryption effort, it is possible for the attacker to use this as an oracle to obtain key equivalent functionality for the CEK used for the chosen recipient of the message.  In another use case, an attacker can reduce the tag length of the chosen AEAD cipher for a given AuthEnvelopedData container to be a single byte long, allowing an attacker to brute force CMS decryption, producing an integrity bypass for applications that trust CMS_decrypt() to reject modified content.  The FIPS modules are not affected by this issue."},"relatedVulnerabilities":[{"id":"CVE-2026-34182","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","metrics":{"baseScore":9.1,"impactScore":5.2,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-34182","cwe":"CWE-354","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-34182","date":"2026-10-27","epss":0.01057,"percentile":0.64278}],"urls":["https://github.com/openssl/openssl/commit/03c1f4d45fb963aee7d5833390c507cd290182bc","https://github.com/openssl/openssl/commit/439ed7d2c0962ce964482727264668bf277c333f","https://github.com/openssl/openssl/commit/7947e6a81eb8776802f159fb6762cb7fcf7e34c7","https://github.com/openssl/openssl/commit/9fd97f8cfdc2c0be214998de3b2b55c8edf6c7ac","https://github.com/openssl/openssl/commit/d2ca86bcd43e4f17d899f347101766b6107676e0","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"Critical","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-34182","description":"Issue Summary: Cryptographic Message Services (CMS) processing fails to perform\nsufficient input validation on the cipher and tag length fields of\nAuthEnvelopedData containers, leading to various potential compromises.\n\nImpact Summary: Attackers making use of these vulnerabilities may achieve\nkey-equivalent functionality for a given CMS recipient and/or bypass integrity\nvalidation for a given message.\n\nIn one use case, an attacker may send a CMS message containing\nAuthEnvelopedData with the cipher specified as a non-AEAD cipher.  OpenSSL\nerroneously allows this selection, and attempts to decrypt and validate the\nmessage.\n\nAn on-path attacker who captures one legitimate AES-GCM AuthEnvelopedData\naddressed to the victim can re-emit it with the recipientInfos set left\nbyte-for-byte intact, so the victim's private key still unwraps the genuine CEK\n(the content-encryption key), but with the inner OID rewritten to AES-256-OFB\n(Output Feedback Mode, an unauthenticated keystream mode) and with an\nattacker-chosen IV and ciphertext. 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Impact Summary: Attackers making use of these vulnerabilities may achieve key-equivalent functionality for a given CMS recipient and/or bypass integrity validation for a given message.  In one use case, an attacker may send a CMS message containing AuthEnvelopedData with the cipher specified as a non-AEAD cipher.  OpenSSL erroneously allows this selection, and attempts to decrypt and validate the message.  An on-path attacker who captures one legitimate AES-GCM AuthEnvelopedData addressed to the victim can re-emit it with the recipientInfos set left byte-for-byte intact, so the victim's private key still unwraps the genuine CEK (the content-encryption key), but with the inner OID rewritten to AES-256-OFB (Output Feedback Mode, an unauthenticated keystream mode) and with an attacker-chosen IV and ciphertext. The victim initializes AES-256-OFB under the real CEK, never consults the MAC field, and CMS_decrypt() returns success.  If the application under attack responds to the attacker with any indicator showing success or failure of the decryption effort, it is possible for the attacker to use this as an oracle to obtain key equivalent functionality for the CEK used for the chosen recipient of the message.  In another use case, an attacker can reduce the tag length of the chosen AEAD cipher for a given AuthEnvelopedData container to be a single byte long, allowing an attacker to brute force CMS decryption, producing an integrity bypass for applications that trust CMS_decrypt() to reject modified content.  The FIPS modules are not affected by this issue."},"relatedVulnerabilities":[{"id":"CVE-2026-34182","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","metrics":{"baseScore":9.1,"impactScore":5.2,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-34182","cwe":"CWE-354","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-34182","date":"2026-10-27","epss":0.01057,"percentile":0.64278}],"urls":["https://github.com/openssl/openssl/commit/03c1f4d45fb963aee7d5833390c507cd290182bc","https://github.com/openssl/openssl/commit/439ed7d2c0962ce964482727264668bf277c333f","https://github.com/openssl/openssl/commit/7947e6a81eb8776802f159fb6762cb7fcf7e34c7","https://github.com/openssl/openssl/commit/9fd97f8cfdc2c0be214998de3b2b55c8edf6c7ac","https://github.com/openssl/openssl/commit/d2ca86bcd43e4f17d899f347101766b6107676e0","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"Critical","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-34182","description":"Issue Summary: Cryptographic Message Services (CMS) processing fails to perform\nsufficient input validation on the cipher and tag length fields of\nAuthEnvelopedData containers, leading to various potential compromises.\n\nImpact Summary: Attackers making use of these vulnerabilities may achieve\nkey-equivalent functionality for a given CMS recipient and/or bypass integrity\nvalidation for a given message.\n\nIn one use case, an attacker may send a CMS message containing\nAuthEnvelopedData with the cipher specified as a non-AEAD cipher.  OpenSSL\nerroneously allows this selection, and attempts to decrypt and validate the\nmessage.\n\nAn on-path attacker who captures one legitimate AES-GCM AuthEnvelopedData\naddressed to the victim can re-emit it with the recipientInfos set left\nbyte-for-byte intact, so the victim's private key still unwraps the genuine CEK\n(the content-encryption key), but with the inner OID rewritten to AES-256-OFB\n(Output Feedback Mode, an unauthenticated keystream mode) and with an\nattacker-chosen IV and ciphertext. The victim initializes AES-256-OFB under the\nreal CEK, never consults the MAC field, and CMS_decrypt() returns success.\n\nIf the application under attack responds to the attacker with any indicator\nshowing success or failure of the decryption effort, it is possible for the\nattacker to use this as an oracle to obtain key equivalent functionality for the\nCEK used for the chosen recipient of the message.\n\nIn another use case, an attacker can reduce the tag length of the chosen AEAD\ncipher for a given AuthEnvelopedData container to be a single byte long,\nallowing an attacker to brute force CMS decryption, producing an integrity\nbypass for applications that trust CMS_decrypt() to reject modified content.\n\nThe FIPS modules are not affected by this issue."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-14457","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-14457","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-14457","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-14457","date":"2026-10-27","epss":0.01167,"percentile":0.67189}],"risk":0.87525,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-14457","description":"Issue summary: In a server or client configuration with RFC7250 Raw Public Keys (RPKs) enabled, and only the private key (with no associated certificate) configured locally, a NULL pointer dereference may occur when the remote peer solicits raw public keys and also sends the typically omitted \"signature_algorithms_cert\" TLS extension.  Impact summary: The impact is limited to a possible Denial of Service as a result of an application abort, no data disclosure or remote command execution are possible.  CWE: CWE-476: NULL Pointer Dereference  Description: While a passing comment in sample code in the documentation suggests that key-only RPK configurations are supported, the best-practice RPK configuration is to always configure a corresponding certificate (possibly self-signed or signed by any convenient CA).  When the private key is configured along with a matching certificate, the \"signature_algorithms_cert\" extension is handled reliably even without the fix, and peer clients or servers that don't support raw public keys may be able to complete a TLS connection by pinning or verifying the corresponding certificate or its public key.  Deployments that prefer to configure just a private key with no certificate need to upgrade to an updated release as noted below.  FIPS impact: no  No FIPS modules are affected by this issue, as the SSL protocol implementation is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-14457","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-14457","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-14457","date":"2026-10-27","epss":0.01167,"percentile":0.67189}],"urls":["https://github.com/openssl/openssl/commit/1e8c398db67404babd3e5af999bb6bd86f720c76","https://github.com/openssl/openssl/commit/581aaa0f0a35d214740f0fe1f5283ec41f1212e1","https://github.com/openssl/openssl/commit/d0af20478688a6aa2f59d61caa3f82136b181d7f","https://github.com/openssl/openssl/commit/dad836b071da6579510c968615848ba03cac593b","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-14457","description":"Issue summary: In a server or client configuration with RFC7250 Raw Public Keys (RPKs)\nenabled, and only the private key (with no associated certificate) configured locally,\na NULL pointer dereference may occur when the remote peer solicits raw public keys and\nalso sends the typically omitted \"signature_algorithms_cert\" TLS extension.\n\nImpact summary: The impact is limited to a possible Denial of Service as a result of\nan application abort, no data disclosure or remote command execution are possible.\n\nCWE: CWE-476: NULL Pointer Dereference\n\nDescription: While a passing comment in sample code in the documentation suggests\nthat key-only RPK configurations are supported, the best-practice RPK configuration\nis to always configure a corresponding certificate (possibly self-signed or\nsigned by any convenient CA).\n\nWhen the private key is configured along with a matching certificate, the\n\"signature_algorithms_cert\" extension is handled reliably even without the\nfix, and peer clients or servers that don't support raw public keys may be\nable to complete a TLS connection by pinning or verifying the corresponding\ncertificate or its public key.\n\nDeployments that prefer to configure just a private key with no certificate\nneed to upgrade to an updated release as noted below.\n\nFIPS impact: no\n\nNo FIPS modules are affected by this issue, as the SSL protocol implementation\nis outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-14457","versionConstraint":"< 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Impact summary: The impact is limited to a possible Denial of Service as a result of an application abort, no data disclosure or remote command execution are possible.  CWE: CWE-476: NULL Pointer Dereference  Description: While a passing comment in sample code in the documentation suggests that key-only RPK configurations are supported, the best-practice RPK configuration is to always configure a corresponding certificate (possibly self-signed or signed by any convenient CA).  When the private key is configured along with a matching certificate, the \"signature_algorithms_cert\" extension is handled reliably even without the fix, and peer clients or servers that don't support raw public keys may be able to complete a TLS connection by pinning or verifying the corresponding certificate or its public key.  Deployments that prefer to configure just a private key with no certificate need to upgrade to an updated release as noted below.  FIPS impact: no  No FIPS modules are affected by this issue, as the SSL protocol implementation is outside the OpenSSL FIPS module 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summary: In a server or client configuration with RFC7250 Raw Public Keys (RPKs)\nenabled, and only the private key (with no associated certificate) configured locally,\na NULL pointer dereference may occur when the remote peer solicits raw public keys and\nalso sends the typically omitted \"signature_algorithms_cert\" TLS extension.\n\nImpact summary: The impact is limited to a possible Denial of Service as a result of\nan application abort, no data disclosure or remote command execution are possible.\n\nCWE: CWE-476: NULL Pointer Dereference\n\nDescription: While a passing comment in sample code in the documentation suggests\nthat key-only RPK configurations are supported, the best-practice RPK configuration\nis to always configure a corresponding certificate (possibly self-signed or\nsigned by any convenient CA).\n\nWhen the private key is configured along with a matching certificate, the\n\"signature_algorithms_cert\" extension is handled reliably even without the\nfix, and peer clients or servers that don't support raw public keys may be\nable to complete a TLS connection by pinning or verifying the corresponding\ncertificate or its public key.\n\nDeployments that prefer to configure just a private key with no certificate\nneed to upgrade to an updated release as noted below.\n\nFIPS impact: no\n\nNo FIPS modules are affected by this issue, as the SSL protocol implementation\nis outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-14457","versionConstraint":"< 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Impact summary: The impact is limited to a possible Denial of Service as a result of an application abort, no data disclosure or remote command execution are possible.  CWE: CWE-476: NULL Pointer Dereference  Description: While a passing comment in sample code in the documentation suggests that key-only RPK configurations are supported, the best-practice RPK configuration is to always configure a corresponding certificate (possibly self-signed or signed by any convenient CA).  When the private key is configured along with a matching certificate, the \"signature_algorithms_cert\" extension is handled reliably even without the fix, and peer clients or servers that don't support raw public keys may be able to complete a TLS connection by pinning or verifying the corresponding certificate or its public key.  Deployments that prefer to configure just a private key with no certificate need to upgrade to an updated release as noted below.  FIPS impact: no  No FIPS modules are affected by this issue, as the SSL protocol implementation is outside the OpenSSL FIPS module 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summary: In a server or client configuration with RFC7250 Raw Public Keys (RPKs)\nenabled, and only the private key (with no associated certificate) configured locally,\na NULL pointer dereference may occur when the remote peer solicits raw public keys and\nalso sends the typically omitted \"signature_algorithms_cert\" TLS extension.\n\nImpact summary: The impact is limited to a possible Denial of Service as a result of\nan application abort, no data disclosure or remote command execution are possible.\n\nCWE: CWE-476: NULL Pointer Dereference\n\nDescription: While a passing comment in sample code in the documentation suggests\nthat key-only RPK configurations are supported, the best-practice RPK configuration\nis to always configure a corresponding certificate (possibly self-signed or\nsigned by any convenient CA).\n\nWhen the private key is configured along with a matching certificate, the\n\"signature_algorithms_cert\" extension is handled reliably even without the\nfix, and peer clients or servers that don't support raw public keys may be\nable to complete a TLS connection by pinning or verifying the corresponding\ncertificate or its public key.\n\nDeployments that prefer to configure just a private key with no certificate\nneed to upgrade to an updated release as noted below.\n\nFIPS impact: no\n\nNo FIPS modules are affected by this issue, as the SSL protocol implementation\nis outside the OpenSSL FIPS module 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summary: In a server or client configuration with RFC7250 Raw Public Keys (RPKs) enabled, and only the private key (with no associated certificate) configured locally, a NULL pointer dereference may occur when the remote peer solicits raw public keys and also sends the typically omitted \"signature_algorithms_cert\" TLS extension.  Impact summary: The impact is limited to a possible Denial of Service as a result of an application abort, no data disclosure or remote command execution are possible.  CWE: CWE-476: NULL Pointer Dereference  Description: While a passing comment in sample code in the documentation suggests that key-only RPK configurations are supported, the best-practice RPK configuration is to always configure a corresponding certificate (possibly self-signed or signed by any convenient CA).  When the private key is configured along with a matching certificate, the \"signature_algorithms_cert\" extension is handled reliably even without the fix, and peer clients or servers that don't support raw public keys may be able to complete a TLS connection by pinning or verifying the corresponding certificate or its public key.  Deployments that prefer to configure just a private key with no certificate need to upgrade to an updated release as noted below.  FIPS impact: no  No FIPS modules are affected by this issue, as the SSL protocol implementation is outside the OpenSSL FIPS module 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summary: In a server or client configuration with RFC7250 Raw Public Keys (RPKs)\nenabled, and only the private key (with no associated certificate) configured locally,\na NULL pointer dereference may occur when the remote peer solicits raw public keys and\nalso sends the typically omitted \"signature_algorithms_cert\" TLS extension.\n\nImpact summary: The impact is limited to a possible Denial of Service as a result of\nan application abort, no data disclosure or remote command execution are possible.\n\nCWE: CWE-476: NULL Pointer Dereference\n\nDescription: While a passing comment in sample code in the documentation suggests\nthat key-only RPK configurations are supported, the best-practice RPK configuration\nis to always configure a corresponding certificate (possibly self-signed or\nsigned by any convenient CA).\n\nWhen the private key is configured along with a matching certificate, the\n\"signature_algorithms_cert\" extension is handled reliably even without the\nfix, and peer clients or servers that don't support raw public keys may be\nable to complete a TLS connection by pinning or verifying the corresponding\ncertificate or its public key.\n\nDeployments that prefer to configure just a private key with no certificate\nneed to upgrade to an updated release as noted below.\n\nFIPS impact: no\n\nNo FIPS modules are affected by this issue, as the SSL protocol implementation\nis outside the OpenSSL FIPS module 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The local QUIC stack\nallocates a PATH_RESPONSE frame for every PATH_CHALLENGE it receives.\nThe allocated PATH_RESPONSE frame gets freed only when the remote\npeer acknowledges reception of the PATH_RESPONSE frame which will\nnot be done by a malicious peer.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by\nthis issue. The QUIC stack is outside of OpenSSL FIPS module\nboundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-34183","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-34183","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-10","kind":"first-observed","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-34183","cwe":"CWE-1325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-34183","date":"2026-10-27","epss":0.01049,"percentile":0.64085}],"risk":0.78675,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-34183","description":"Issue summary: Remote peer may exhaust heap memory of the QUIC server or client by flooding it with packets containing PATH_CHALLENGE frames.  Impact summary: A malicious remote peer can cause an unbounded memory allocation which can lead to an abnormal termination of the application acting as a QUIC client or server and a Denial of Service.  A remote peer may exhaust heap memory by flooding the local QUIC stack with PATH_CHALLENGE frames. The local QUIC stack allocates a PATH_RESPONSE frame for every PATH_CHALLENGE it receives. The allocated PATH_RESPONSE frame gets freed only when the remote peer acknowledges reception of the PATH_RESPONSE frame which will not be done by a malicious peer.  The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue. The QUIC stack is outside of OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-34183","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-34183","cwe":"CWE-1325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-34183","date":"2026-10-27","epss":0.01049,"percentile":0.64085}],"urls":["https://github.com/openssl/openssl/commit/5b306efb0b3779dfdd0803b4afc9d08c91f11517","https://github.com/openssl/openssl/commit/7d06955ebe0ecf8adfd4c1e92018586da47ef9ac","https://github.com/openssl/openssl/commit/d2e9efbe4900a373227deb136e8665401404ffac","https://github.com/openssl/openssl/commit/fbaa83859c01ad64f497b757aaf51be7d05ed9eb","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-34183","description":"Issue summary: Remote peer may exhaust heap memory of the QUIC\nserver or client by flooding it with packets containing PATH_CHALLENGE\nframes.\n\nImpact summary: A malicious remote peer can cause an unbounded\nmemory allocation which can lead to an abnormal termination of the\napplication acting as a QUIC client or server and a Denial of Service.\n\nA remote peer may exhaust heap memory by flooding the local\nQUIC stack with PATH_CHALLENGE frames. The local QUIC stack\nallocates a PATH_RESPONSE frame for every PATH_CHALLENGE it receives.\nThe allocated PATH_RESPONSE frame gets freed only when the remote\npeer acknowledges reception of the PATH_RESPONSE frame which will\nnot be done by a malicious peer.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by\nthis issue. The QUIC stack is outside of OpenSSL FIPS module\nboundary."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-34183","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-34183","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-10","kind":"first-observed","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-34183","cwe":"CWE-1325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-34183","date":"2026-10-27","epss":0.01049,"percentile":0.64085}],"risk":0.78675,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-34183","description":"Issue summary: Remote peer may exhaust heap memory of the QUIC server or client by flooding it with packets containing PATH_CHALLENGE frames.  Impact summary: A malicious remote peer can cause an unbounded memory allocation which can lead to an abnormal termination of the application acting as a QUIC client or server and a Denial of Service.  A remote peer may exhaust heap memory by flooding the local QUIC stack with PATH_CHALLENGE frames. The local QUIC stack allocates a PATH_RESPONSE frame for every PATH_CHALLENGE it receives. The allocated PATH_RESPONSE frame gets freed only when the remote peer acknowledges reception of the PATH_RESPONSE frame which will not be done by a malicious peer.  The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue. The QUIC stack is outside of OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-34183","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-34183","cwe":"CWE-1325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-34183","date":"2026-10-27","epss":0.01049,"percentile":0.64085}],"urls":["https://github.com/openssl/openssl/commit/5b306efb0b3779dfdd0803b4afc9d08c91f11517","https://github.com/openssl/openssl/commit/7d06955ebe0ecf8adfd4c1e92018586da47ef9ac","https://github.com/openssl/openssl/commit/d2e9efbe4900a373227deb136e8665401404ffac","https://github.com/openssl/openssl/commit/fbaa83859c01ad64f497b757aaf51be7d05ed9eb","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-34183","description":"Issue summary: Remote peer may exhaust heap memory of the QUIC\nserver or client by flooding it with packets containing PATH_CHALLENGE\nframes.\n\nImpact summary: A malicious remote peer can cause an unbounded\nmemory allocation which can lead to an abnormal termination of the\napplication acting as a QUIC client or server and a Denial of Service.\n\nA remote peer may exhaust heap memory by flooding the local\nQUIC stack with PATH_CHALLENGE frames. The local QUIC stack\nallocates a PATH_RESPONSE frame for every PATH_CHALLENGE it receives.\nThe allocated PATH_RESPONSE frame gets freed only when the remote\npeer acknowledges reception of the PATH_RESPONSE frame which will\nnot be done by a malicious peer.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by\nthis issue. The QUIC stack is outside of OpenSSL FIPS module\nboundary."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-34180","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-34180","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-34180","cwe":"CWE-125","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-34180","date":"2026-10-27","epss":0.01025,"percentile":0.63411}],"risk":0.76875,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-34180","description":"Issue summary: Parsing a crafted DER-encoded ASN.1 structure with a primitive element whose content exceeds 2 gigabytes in length may cause a heap buffer over-read on 64-bit Unix and Unix-like platforms.  Impact summary: The heap buffer over-read may crash the application (Denial of Service) or to load into the decoded ASN.1 object contents of memory beyond the end of the input buffer.  More typically such ASN.1 elements would instead be truncated.  An integer truncation in OpenSSL's ASN.1 decoder causes the content length of an ASN.1 primitive element to be mishandled when it exceeds 2 gigabytes. In the worst case the truncated length is treated as a request to scan the binary content for a terminating zero byte, possibly causing OpenSSL to read either less than or beyond the end of the allocated buffer.  Applications that pass attacker-supplied data to d2i_X509(), d2i_PKCS7(), or any other d2i_* decoding function are affected. OpenSSL's own command-line tools are not vulnerable, as data read through the BIO layer is checked before it reaches the affected code. The issue only affects 64-bit Unix and Unix-like platforms; 32-bit platforms and 64-bit Windows are not affected.  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More typically such ASN.1 elements would instead be\ntruncated.\n\nAn integer truncation in OpenSSL's ASN.1 decoder causes the content length of\nan ASN.1 primitive element to be mishandled when it exceeds 2 gigabytes. In the\nworst case the truncated length is treated as a request to scan the binary\ncontent for a terminating zero byte, possibly causing OpenSSL to read either\nless than or beyond the end of the allocated buffer.\n\nApplications that pass attacker-supplied data to d2i_X509(), d2i_PKCS7(), or\nany other d2i_* decoding function are affected. OpenSSL's own command-line\ntools are not vulnerable, as data read through the BIO layer is checked before\nit reaches the affected code. The issue only affects 64-bit Unix and Unix-like\nplatforms; 32-bit platforms and 64-bit Windows are not affected.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by this issue,\nas the affected code is outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-63072","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-63072","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63072","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63072","date":"2026-10-27","epss":0.00916,"percentile":0.60007}],"risk":0.6869999999999999,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-63072","description":"Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive can write and cleanse more bytes than that query reports, causing an 8-byte out-of-bounds heap write.  Impact summary: An attacker who supplies a crafted CMS message can trigger a deterministic 8-byte out-of-bounds heap write when the victim decrypts it with CMS_decrypt(), corrupting the heap and typically resulting in a Denial of Service.  CWE: CWE-787: Out-of-bounds Write  Description: The key-wrap OID is potentially attacker-controlled on the wire. CMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers. An attacker can take a legitimate message and change a single OID byte to select the padded variant while leaving the message otherwise valid. Since the unwrap key is derived from the recipient's private operation (ECDH key agreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot pass, and the decryption fails with integrity failure.  The write is a fixed-size (8-byte), fixed-value (zero) heap overflow immediately past the allocation, requires no special configuration, and is reachable from the public CMS_decrypt() function. The consequence is a heap corruption leading to a Denial of Service. The fix in the CMS code sizes the unwrap output buffer for the worst case so a failed unwrap cannot write past the allocation.  FIPS impact: no  As the CMS code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE."},"relatedVulnerabilities":[{"id":"CVE-2026-63072","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63072","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63072","date":"2026-10-27","epss":0.00916,"percentile":0.60007}],"urls":["https://github.com/openssl/openssl/commit/2a3dac874c8057c1f0186849bf1ede1ae7b6b756","https://github.com/openssl/openssl/commit/87784ad619af36b8807c2044b3940006fccc1e42","https://github.com/openssl/openssl/commit/9530a5fd1aacaeccdced4478ea2340a480613335","https://github.com/openssl/openssl/commit/9ec2f6d2ae2bcad907cf7ee38584855bafe4979a","https://github.com/openssl/openssl/commit/a0c8ec557d9cac078f032d76cdf684fe743eb382","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-63072","description":"Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based\non querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive\ncan write and cleanse more bytes than that query reports, causing an 8-byte\nout-of-bounds heap write.\n\nImpact summary: An attacker who supplies a crafted CMS message can trigger a\ndeterministic 8-byte out-of-bounds heap write when the victim decrypts it\nwith CMS_decrypt(), corrupting the heap and typically resulting in a Denial\nof Service.\n\nCWE: CWE-787: Out-of-bounds Write\n\nDescription: The key-wrap OID is potentially attacker-controlled on the wire.\nCMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers.\nAn attacker can take a legitimate message and change a single OID byte to\nselect the padded variant while leaving the message otherwise valid. Since\nthe unwrap key is derived from the recipient's private operation (ECDH key\nagreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot\npass, and the decryption fails with integrity failure.\n\nThe write is a fixed-size (8-byte), fixed-value (zero) heap overflow\nimmediately past the allocation, requires no special configuration, and is\nreachable from the public CMS_decrypt() function. The consequence is\na heap corruption leading to a Denial of Service. The fix in the CMS code\nsizes the unwrap output buffer for the worst case so a failed unwrap cannot\nwrite past the allocation.\n\nFIPS impact: no\n\nAs the CMS code lives outside the FIPS module boundary, no FIPS\nmodules are affected by this CVE."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-63072","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-63072","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63072","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63072","date":"2026-10-27","epss":0.00916,"percentile":0.60007}],"risk":0.6869999999999999,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-63072","description":"Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive can write and cleanse more bytes than that query reports, causing an 8-byte out-of-bounds heap write.  Impact summary: An attacker who supplies a crafted CMS message can trigger a deterministic 8-byte out-of-bounds heap write when the victim decrypts it with CMS_decrypt(), corrupting the heap and typically resulting in a Denial of Service.  CWE: CWE-787: Out-of-bounds Write  Description: The key-wrap OID is potentially attacker-controlled on the wire. CMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers. An attacker can take a legitimate message and change a single OID byte to select the padded variant while leaving the message otherwise valid. Since the unwrap key is derived from the recipient's private operation (ECDH key agreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot pass, and the decryption fails with integrity failure.  The write is a fixed-size (8-byte), fixed-value (zero) heap overflow immediately past the allocation, requires no special configuration, and is reachable from the public CMS_decrypt() function. The consequence is a heap corruption leading to a Denial of Service. The fix in the CMS code sizes the unwrap output buffer for the worst case so a failed unwrap cannot write past the allocation.  FIPS impact: no  As the CMS code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE."},"relatedVulnerabilities":[{"id":"CVE-2026-63072","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63072","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63072","date":"2026-10-27","epss":0.00916,"percentile":0.60007}],"urls":["https://github.com/openssl/openssl/commit/2a3dac874c8057c1f0186849bf1ede1ae7b6b756","https://github.com/openssl/openssl/commit/87784ad619af36b8807c2044b3940006fccc1e42","https://github.com/openssl/openssl/commit/9530a5fd1aacaeccdced4478ea2340a480613335","https://github.com/openssl/openssl/commit/9ec2f6d2ae2bcad907cf7ee38584855bafe4979a","https://github.com/openssl/openssl/commit/a0c8ec557d9cac078f032d76cdf684fe743eb382","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-63072","description":"Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based\non querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive\ncan write and cleanse more bytes than that query reports, causing an 8-byte\nout-of-bounds heap write.\n\nImpact summary: An attacker who supplies a crafted CMS message can trigger a\ndeterministic 8-byte out-of-bounds heap write when the victim decrypts it\nwith CMS_decrypt(), corrupting the heap and typically resulting in a Denial\nof Service.\n\nCWE: CWE-787: Out-of-bounds Write\n\nDescription: The key-wrap OID is potentially attacker-controlled on the wire.\nCMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers.\nAn attacker can take a legitimate message and change a single OID byte to\nselect the padded variant while leaving the message otherwise valid. Since\nthe unwrap key is derived from the recipient's private operation (ECDH key\nagreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot\npass, and the decryption fails with integrity failure.\n\nThe write is a fixed-size (8-byte), fixed-value (zero) heap overflow\nimmediately past the allocation, requires no special configuration, and is\nreachable from the public CMS_decrypt() function. The consequence is\na heap corruption leading to a Denial of Service. The fix in the CMS code\nsizes the unwrap output buffer for the worst case so a failed unwrap cannot\nwrite past the allocation.\n\nFIPS impact: no\n\nAs the CMS code lives outside the FIPS module boundary, no FIPS\nmodules are affected by this CVE."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-63072","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-63072","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63072","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63072","date":"2026-10-27","epss":0.00916,"percentile":0.60007}],"risk":0.6869999999999999,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-63072","description":"Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive can write and cleanse more bytes than that query reports, causing an 8-byte out-of-bounds heap write.  Impact summary: An attacker who supplies a crafted CMS message can trigger a deterministic 8-byte out-of-bounds heap write when the victim decrypts it with CMS_decrypt(), corrupting the heap and typically resulting in a Denial of Service.  CWE: CWE-787: Out-of-bounds Write  Description: The key-wrap OID is potentially attacker-controlled on the wire. CMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers. An attacker can take a legitimate message and change a single OID byte to select the padded variant while leaving the message otherwise valid. Since the unwrap key is derived from the recipient's private operation (ECDH key agreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot pass, and the decryption fails with integrity failure.  The write is a fixed-size (8-byte), fixed-value (zero) heap overflow immediately past the allocation, requires no special configuration, and is reachable from the public CMS_decrypt() function. The consequence is a heap corruption leading to a Denial of Service. The fix in the CMS code sizes the unwrap output buffer for the worst case so a failed unwrap cannot write past the allocation.  FIPS impact: no  As the CMS code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE."},"relatedVulnerabilities":[{"id":"CVE-2026-63072","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63072","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63072","date":"2026-10-27","epss":0.00916,"percentile":0.60007}],"urls":["https://github.com/openssl/openssl/commit/2a3dac874c8057c1f0186849bf1ede1ae7b6b756","https://github.com/openssl/openssl/commit/87784ad619af36b8807c2044b3940006fccc1e42","https://github.com/openssl/openssl/commit/9530a5fd1aacaeccdced4478ea2340a480613335","https://github.com/openssl/openssl/commit/9ec2f6d2ae2bcad907cf7ee38584855bafe4979a","https://github.com/openssl/openssl/commit/a0c8ec557d9cac078f032d76cdf684fe743eb382","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-63072","description":"Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based\non querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive\ncan write and cleanse more bytes than that query reports, causing an 8-byte\nout-of-bounds heap write.\n\nImpact summary: An attacker who supplies a crafted CMS message can trigger a\ndeterministic 8-byte out-of-bounds heap write when the victim decrypts it\nwith CMS_decrypt(), corrupting the heap and typically resulting in a Denial\nof Service.\n\nCWE: CWE-787: Out-of-bounds Write\n\nDescription: The key-wrap OID is potentially attacker-controlled on the wire.\nCMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers.\nAn attacker can take a legitimate message and change a single OID byte to\nselect the padded variant while leaving the message otherwise valid. Since\nthe unwrap key is derived from the recipient's private operation (ECDH key\nagreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot\npass, and the decryption fails with integrity failure.\n\nThe write is a fixed-size (8-byte), fixed-value (zero) heap overflow\nimmediately past the allocation, requires no special configuration, and is\nreachable from the public CMS_decrypt() function. The consequence is\na heap corruption leading to a Denial of Service. The fix in the CMS code\nsizes the unwrap output buffer for the worst case so a failed unwrap cannot\nwrite past the allocation.\n\nFIPS impact: no\n\nAs the CMS code lives outside the FIPS module boundary, no FIPS\nmodules are affected by this CVE."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-63072","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-63072","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63072","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63072","date":"2026-10-27","epss":0.00916,"percentile":0.60007}],"risk":0.6869999999999999,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-63072","description":"Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive can write and cleanse more bytes than that query reports, causing an 8-byte out-of-bounds heap write.  Impact summary: An attacker who supplies a crafted CMS message can trigger a deterministic 8-byte out-of-bounds heap write when the victim decrypts it with CMS_decrypt(), corrupting the heap and typically resulting in a Denial of Service.  CWE: CWE-787: Out-of-bounds Write  Description: The key-wrap OID is potentially attacker-controlled on the wire. CMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers. An attacker can take a legitimate message and change a single OID byte to select the padded variant while leaving the message otherwise valid. Since the unwrap key is derived from the recipient's private operation (ECDH key agreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot pass, and the decryption fails with integrity failure.  The write is a fixed-size (8-byte), fixed-value (zero) heap overflow immediately past the allocation, requires no special configuration, and is reachable from the public CMS_decrypt() function. The consequence is a heap corruption leading to a Denial of Service. The fix in the CMS code sizes the unwrap output buffer for the worst case so a failed unwrap cannot write past the allocation.  FIPS impact: no  As the CMS code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE."},"relatedVulnerabilities":[{"id":"CVE-2026-63072","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63072","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63072","date":"2026-10-27","epss":0.00916,"percentile":0.60007}],"urls":["https://github.com/openssl/openssl/commit/2a3dac874c8057c1f0186849bf1ede1ae7b6b756","https://github.com/openssl/openssl/commit/87784ad619af36b8807c2044b3940006fccc1e42","https://github.com/openssl/openssl/commit/9530a5fd1aacaeccdced4478ea2340a480613335","https://github.com/openssl/openssl/commit/9ec2f6d2ae2bcad907cf7ee38584855bafe4979a","https://github.com/openssl/openssl/commit/a0c8ec557d9cac078f032d76cdf684fe743eb382","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-63072","description":"Issue summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based\non querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive\ncan write and cleanse more bytes than that query reports, causing an 8-byte\nout-of-bounds heap write.\n\nImpact summary: An attacker who supplies a crafted CMS message can trigger a\ndeterministic 8-byte out-of-bounds heap write when the victim decrypts it\nwith CMS_decrypt(), corrupting the heap and typically resulting in a Denial\nof Service.\n\nCWE: CWE-787: Out-of-bounds Write\n\nDescription: The key-wrap OID is potentially attacker-controlled on the wire.\nCMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers.\nAn attacker can take a legitimate message and change a single OID byte to\nselect the padded variant while leaving the message otherwise valid. Since\nthe unwrap key is derived from the recipient's private operation (ECDH key\nagreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot\npass, and the decryption fails with integrity failure.\n\nThe write is a fixed-size (8-byte), fixed-value (zero) heap overflow\nimmediately past the allocation, requires no special configuration, and is\nreachable from the public CMS_decrypt() function. The consequence is\na heap corruption leading to a Denial of Service. The fix in the CMS code\nsizes the unwrap output buffer for the worst case so a failed unwrap cannot\nwrite past the allocation.\n\nFIPS impact: no\n\nAs the CMS code lives outside the FIPS module boundary, no FIPS\nmodules are affected by this CVE."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-84782","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-84782","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","metrics":{"baseScore":8.2,"impactScore":4.3,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-84782","cwe":"CWE-125","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-84782","date":"2026-10-27","epss":0.00831,"percentile":0.57388}],"risk":0.6523349999999999,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-84782","description":"Issue summary: The DTLS retransmission logic does not correctly handle a handshake message write that is suspended part-way through. The retransmitted message can be read past the message buffer and the retransmission overwrites the internal state the suspended write needs to resume correctly.  Impact summary: The retransmitted message can disclose a heap memory to the peer as plaintext handshake data or cause a crash and a Denial of Service when the read reaches an unmapped memory region.  CWE: CWE-125: Out-of-bounds Read  Description: DTLS handshake messages can be written out in multiple fragments, and a write can suspend mid-message (returning WANT_WRITE) if the underlying transport temporarily cannot accept more data. While such a write is suspended, the DTLS retransmission timer may independently fire and ask the retransmission logic to resend an earlier, already-acknowledged-as-sent message from its retransmit queue.  The retransmission logic reused the same internal buffer and position tracking as the message that was still being written, without resetting the position back to the start of the message being retransmitted. As a result the retransmission was read starting from wherever the suspended write had left off, producing a mislabelled message whose body was leftover bytes from the other, larger message still in flight - content that was never meant to be sent at that point, and which could run past the end of the allocated buffer.  Separately, even when the retransmission is positioned correctly, allowing it to run to completion while another write is suspended overwrites the same shared bookkeeping that the suspended write depends on to resume. When the application later resumes the suspended write (via a subsequent SSL_read(), SSL_write(), SSL_accept(), or SSL_connect() call), it finds that bookkeeping in a state inconsistent with the message and aborts the process in a debugging build.  The fix resets the retransmission's read position to the start of the message before resending, and skips retransmission entirely whenever a handshake write is still suspended, deferring to the next call that resumes it instead.  FIPS impact: no The affected code is outside the FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-84782","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","metrics":{"baseScore":8.2,"impactScore":4.3,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-84782","cwe":"CWE-125","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-84782","date":"2026-10-27","epss":0.00831,"percentile":0.57388}],"urls":["https://github.com/openssl/openssl/commit/906cf0ef1c85ca40ce69163e9086d6d3fe292943","https://github.com/openssl/openssl/commit/9f6b34422af7eb5dac61322e33dac1ae989fa628","https://github.com/openssl/openssl/commit/a383dafdd754eb5b22bf45e37e1bff9d07277a58","https://github.com/openssl/openssl/commit/d951e02ede8f6a6ff8150546db44b34f0518192c","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-84782","description":"Issue summary: The DTLS retransmission logic does not correctly handle\na handshake message write that is suspended part-way through.\nThe retransmitted message can be read past the message buffer and\nthe retransmission overwrites the internal state the suspended write\nneeds to resume correctly.\n\nImpact summary: The retransmitted message can disclose a heap memory\nto the peer as plaintext handshake data or cause a crash and a Denial\nof Service when the read reaches an unmapped memory region.\n\nCWE: CWE-125: Out-of-bounds Read\n\nDescription: DTLS handshake messages can be written out in multiple\nfragments, and a write can suspend mid-message (returning WANT_WRITE)\nif the underlying transport temporarily cannot accept more data. While\nsuch a write is suspended, the DTLS retransmission timer may\nindependently fire and ask the retransmission logic to resend an\nearlier, already-acknowledged-as-sent message from its retransmit\nqueue.\n\nThe retransmission logic reused the same internal buffer and position\ntracking as the message that was still being written, without\nresetting the position back to the start of the message being\nretransmitted. As a result the retransmission was read starting from\nwherever the suspended write had left off, producing a mislabelled\nmessage whose body was leftover bytes from the other, larger message\nstill in flight - content that was never meant to be sent at that\npoint, and which could run past the end of the allocated buffer.\n\nSeparately, even when the retransmission is positioned correctly,\nallowing it to run to completion while another write is suspended\noverwrites the same shared bookkeeping that the suspended write\ndepends on to resume. When the application later resumes the\nsuspended write (via a subsequent SSL_read(), SSL_write(),\nSSL_accept(), or SSL_connect() call), it finds that bookkeeping in a\nstate inconsistent with the message and aborts the process in\na debugging build.\n\nThe fix resets the retransmission's read position to the start of the\nmessage before resending, and skips retransmission entirely whenever a\nhandshake write is still suspended, deferring to the next call that\nresumes it instead.\n\nFIPS impact: no\nThe affected code is outside the FIPS module boundary."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-84782","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-84782","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","metrics":{"baseScore":8.2,"impactScore":4.3,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-84782","cwe":"CWE-125","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-84782","date":"2026-10-27","epss":0.00831,"percentile":0.57388}],"risk":0.6523349999999999,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-84782","description":"Issue summary: The DTLS retransmission logic does not correctly handle a handshake message write that is suspended part-way through. The retransmitted message can be read past the message buffer and the retransmission overwrites the internal state the suspended write needs to resume correctly.  Impact summary: The retransmitted message can disclose a heap memory to the peer as plaintext handshake data or cause a crash and a Denial of Service when the read reaches an unmapped memory region.  CWE: CWE-125: Out-of-bounds Read  Description: DTLS handshake messages can be written out in multiple fragments, and a write can suspend mid-message (returning WANT_WRITE) if the underlying transport temporarily cannot accept more data. While such a write is suspended, the DTLS retransmission timer may independently fire and ask the retransmission logic to resend an earlier, already-acknowledged-as-sent message from its retransmit queue.  The retransmission logic reused the same internal buffer and position tracking as the message that was still being written, without resetting the position back to the start of the message being retransmitted. As a result the retransmission was read starting from wherever the suspended write had left off, producing a mislabelled message whose body was leftover bytes from the other, larger message still in flight - content that was never meant to be sent at that point, and which could run past the end of the allocated buffer.  Separately, even when the retransmission is positioned correctly, allowing it to run to completion while another write is suspended overwrites the same shared bookkeeping that the suspended write depends on to resume. When the application later resumes the suspended write (via a subsequent SSL_read(), SSL_write(), SSL_accept(), or SSL_connect() call), it finds that bookkeeping in a state inconsistent with the message and aborts the process in a debugging build.  The fix resets the retransmission's read position to the start of the message before resending, and skips retransmission entirely whenever a handshake write is still suspended, deferring to the next call that resumes it instead.  FIPS impact: no The affected code is outside the FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-84782","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","metrics":{"baseScore":8.2,"impactScore":4.3,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-84782","cwe":"CWE-125","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-84782","date":"2026-10-27","epss":0.00831,"percentile":0.57388}],"urls":["https://github.com/openssl/openssl/commit/906cf0ef1c85ca40ce69163e9086d6d3fe292943","https://github.com/openssl/openssl/commit/9f6b34422af7eb5dac61322e33dac1ae989fa628","https://github.com/openssl/openssl/commit/a383dafdd754eb5b22bf45e37e1bff9d07277a58","https://github.com/openssl/openssl/commit/d951e02ede8f6a6ff8150546db44b34f0518192c","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-84782","description":"Issue summary: The DTLS retransmission logic does not correctly handle\na handshake message write that is suspended part-way through.\nThe retransmitted message can be read past the message buffer and\nthe retransmission overwrites the internal state the suspended write\nneeds to resume correctly.\n\nImpact summary: The retransmitted message can disclose a heap memory\nto the peer as plaintext handshake data or cause a crash and a Denial\nof Service when the read reaches an unmapped memory region.\n\nCWE: CWE-125: Out-of-bounds Read\n\nDescription: DTLS handshake messages can be written out in multiple\nfragments, and a write can suspend mid-message (returning WANT_WRITE)\nif the underlying transport temporarily cannot accept more data. While\nsuch a write is suspended, the DTLS retransmission timer may\nindependently fire and ask the retransmission logic to resend an\nearlier, already-acknowledged-as-sent message from its retransmit\nqueue.\n\nThe retransmission logic reused the same internal buffer and position\ntracking as the message that was still being written, without\nresetting the position back to the start of the message being\nretransmitted. As a result the retransmission was read starting from\nwherever the suspended write had left off, producing a mislabelled\nmessage whose body was leftover bytes from the other, larger message\nstill in flight - content that was never meant to be sent at that\npoint, and which could run past the end of the allocated buffer.\n\nSeparately, even when the retransmission is positioned correctly,\nallowing it to run to completion while another write is suspended\noverwrites the same shared bookkeeping that the suspended write\ndepends on to resume. When the application later resumes the\nsuspended write (via a subsequent SSL_read(), SSL_write(),\nSSL_accept(), or SSL_connect() call), it finds that bookkeeping in a\nstate inconsistent with the message and aborts the process in\na debugging build.\n\nThe fix resets the retransmission's read position to the start of the\nmessage before resending, and skips retransmission entirely whenever a\nhandshake write is still suspended, deferring to the next call that\nresumes it instead.\n\nFIPS impact: no\nThe affected code is outside the FIPS module boundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-84782","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-84782","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","metrics":{"baseScore":8.2,"impactScore":4.3,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-84782","cwe":"CWE-125","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-84782","date":"2026-10-27","epss":0.00831,"percentile":0.57388}],"risk":0.6523349999999999,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-84782","description":"Issue summary: The DTLS retransmission logic does not correctly handle a handshake message write that is suspended part-way through. The retransmitted message can be read past the message buffer and the retransmission overwrites the internal state the suspended write needs to resume correctly.  Impact summary: The retransmitted message can disclose a heap memory to the peer as plaintext handshake data or cause a crash and a Denial of Service when the read reaches an unmapped memory region.  CWE: CWE-125: Out-of-bounds Read  Description: DTLS handshake messages can be written out in multiple fragments, and a write can suspend mid-message (returning WANT_WRITE) if the underlying transport temporarily cannot accept more data. While such a write is suspended, the DTLS retransmission timer may independently fire and ask the retransmission logic to resend an earlier, already-acknowledged-as-sent message from its retransmit queue.  The retransmission logic reused the same internal buffer and position tracking as the message that was still being written, without resetting the position back to the start of the message being retransmitted. As a result the retransmission was read starting from wherever the suspended write had left off, producing a mislabelled message whose body was leftover bytes from the other, larger message still in flight - content that was never meant to be sent at that point, and which could run past the end of the allocated buffer.  Separately, even when the retransmission is positioned correctly, allowing it to run to completion while another write is suspended overwrites the same shared bookkeeping that the suspended write depends on to resume. When the application later resumes the suspended write (via a subsequent SSL_read(), SSL_write(), SSL_accept(), or SSL_connect() call), it finds that bookkeeping in a state inconsistent with the message and aborts the process in a debugging build.  The fix resets the retransmission's read position to the start of the message before resending, and skips retransmission entirely whenever a handshake write is still suspended, deferring to the next call that resumes it instead.  FIPS impact: no The affected code is outside the FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-84782","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","metrics":{"baseScore":8.2,"impactScore":4.3,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-84782","cwe":"CWE-125","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-84782","date":"2026-10-27","epss":0.00831,"percentile":0.57388}],"urls":["https://github.com/openssl/openssl/commit/906cf0ef1c85ca40ce69163e9086d6d3fe292943","https://github.com/openssl/openssl/commit/9f6b34422af7eb5dac61322e33dac1ae989fa628","https://github.com/openssl/openssl/commit/a383dafdd754eb5b22bf45e37e1bff9d07277a58","https://github.com/openssl/openssl/commit/d951e02ede8f6a6ff8150546db44b34f0518192c","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-84782","description":"Issue summary: The DTLS retransmission logic does not correctly handle\na handshake message write that is suspended part-way through.\nThe retransmitted message can be read past the message buffer and\nthe retransmission overwrites the internal state the suspended write\nneeds to resume correctly.\n\nImpact summary: The retransmitted message can disclose a heap memory\nto the peer as plaintext handshake data or cause a crash and a Denial\nof Service when the read reaches an unmapped memory region.\n\nCWE: CWE-125: Out-of-bounds Read\n\nDescription: DTLS handshake messages can be written out in multiple\nfragments, and a write can suspend mid-message (returning WANT_WRITE)\nif the underlying transport temporarily cannot accept more data. While\nsuch a write is suspended, the DTLS retransmission timer may\nindependently fire and ask the retransmission logic to resend an\nearlier, already-acknowledged-as-sent message from its retransmit\nqueue.\n\nThe retransmission logic reused the same internal buffer and position\ntracking as the message that was still being written, without\nresetting the position back to the start of the message being\nretransmitted. As a result the retransmission was read starting from\nwherever the suspended write had left off, producing a mislabelled\nmessage whose body was leftover bytes from the other, larger message\nstill in flight - content that was never meant to be sent at that\npoint, and which could run past the end of the allocated buffer.\n\nSeparately, even when the retransmission is positioned correctly,\nallowing it to run to completion while another write is suspended\noverwrites the same shared bookkeeping that the suspended write\ndepends on to resume. When the application later resumes the\nsuspended write (via a subsequent SSL_read(), SSL_write(),\nSSL_accept(), or SSL_connect() call), it finds that bookkeeping in a\nstate inconsistent with the message and aborts the process in\na debugging build.\n\nThe fix resets the retransmission's read position to the start of the\nmessage before resending, and skips retransmission entirely whenever a\nhandshake write is still suspended, deferring to the next call that\nresumes it instead.\n\nFIPS impact: no\nThe affected code is outside the FIPS module boundary."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-84782","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-84782","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","metrics":{"baseScore":8.2,"impactScore":4.3,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-84782","cwe":"CWE-125","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-84782","date":"2026-10-27","epss":0.00831,"percentile":0.57388}],"risk":0.6523349999999999,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-84782","description":"Issue summary: The DTLS retransmission logic does not correctly handle a handshake message write that is suspended part-way through. The retransmitted message can be read past the message buffer and the retransmission overwrites the internal state the suspended write needs to resume correctly.  Impact summary: The retransmitted message can disclose a heap memory to the peer as plaintext handshake data or cause a crash and a Denial of Service when the read reaches an unmapped memory region.  CWE: CWE-125: Out-of-bounds Read  Description: DTLS handshake messages can be written out in multiple fragments, and a write can suspend mid-message (returning WANT_WRITE) if the underlying transport temporarily cannot accept more data. While such a write is suspended, the DTLS retransmission timer may independently fire and ask the retransmission logic to resend an earlier, already-acknowledged-as-sent message from its retransmit queue.  The retransmission logic reused the same internal buffer and position tracking as the message that was still being written, without resetting the position back to the start of the message being retransmitted. As a result the retransmission was read starting from wherever the suspended write had left off, producing a mislabelled message whose body was leftover bytes from the other, larger message still in flight - content that was never meant to be sent at that point, and which could run past the end of the allocated buffer.  Separately, even when the retransmission is positioned correctly, allowing it to run to completion while another write is suspended overwrites the same shared bookkeeping that the suspended write depends on to resume. When the application later resumes the suspended write (via a subsequent SSL_read(), SSL_write(), SSL_accept(), or SSL_connect() call), it finds that bookkeeping in a state inconsistent with the message and aborts the process in a debugging build.  The fix resets the retransmission's read position to the start of the message before resending, and skips retransmission entirely whenever a handshake write is still suspended, deferring to the next call that resumes it instead.  FIPS impact: no The affected code is outside the FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-84782","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H","metrics":{"baseScore":8.2,"impactScore":4.3,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-84782","cwe":"CWE-125","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-84782","date":"2026-10-27","epss":0.00831,"percentile":0.57388}],"urls":["https://github.com/openssl/openssl/commit/906cf0ef1c85ca40ce69163e9086d6d3fe292943","https://github.com/openssl/openssl/commit/9f6b34422af7eb5dac61322e33dac1ae989fa628","https://github.com/openssl/openssl/commit/a383dafdd754eb5b22bf45e37e1bff9d07277a58","https://github.com/openssl/openssl/commit/d951e02ede8f6a6ff8150546db44b34f0518192c","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-84782","description":"Issue summary: The DTLS retransmission logic does not correctly handle\na handshake message write that is suspended part-way through.\nThe retransmitted message can be read past the message buffer and\nthe retransmission overwrites the internal state the suspended write\nneeds to resume correctly.\n\nImpact summary: The retransmitted message can disclose a heap memory\nto the peer as plaintext handshake data or cause a crash and a Denial\nof Service when the read reaches an unmapped memory region.\n\nCWE: CWE-125: Out-of-bounds Read\n\nDescription: DTLS handshake messages can be written out in multiple\nfragments, and a write can suspend mid-message (returning WANT_WRITE)\nif the underlying transport temporarily cannot accept more data. While\nsuch a write is suspended, the DTLS retransmission timer may\nindependently fire and ask the retransmission logic to resend an\nearlier, already-acknowledged-as-sent message from its retransmit\nqueue.\n\nThe retransmission logic reused the same internal buffer and position\ntracking as the message that was still being written, without\nresetting the position back to the start of the message being\nretransmitted. As a result the retransmission was read starting from\nwherever the suspended write had left off, producing a mislabelled\nmessage whose body was leftover bytes from the other, larger message\nstill in flight - content that was never meant to be sent at that\npoint, and which could run past the end of the allocated buffer.\n\nSeparately, even when the retransmission is positioned correctly,\nallowing it to run to completion while another write is suspended\noverwrites the same shared bookkeeping that the suspended write\ndepends on to resume. When the application later resumes the\nsuspended write (via a subsequent SSL_read(), SSL_write(),\nSSL_accept(), or SSL_connect() call), it finds that bookkeeping in a\nstate inconsistent with the message and aborts the process in\na debugging build.\n\nThe fix resets the retransmission's read position to the start of the\nmessage before resending, and skips retransmission entirely whenever a\nhandshake write is still suspended, deferring to the next call that\nresumes it instead.\n\nFIPS impact: no\nThe affected code is outside the FIPS module boundary."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-7383","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-7383","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":8.1,"impactScore":5.9,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-7383","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-7383","date":"2026-10-27","epss":0.00804,"percentile":0.56535}],"risk":0.62712,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-7383","description":"Issue summary: A signed integer overflow when sizing the destination buffer for Unicode output in ASN1_mbstring_ncopy() can lead to a heap buffer overflow.  Impact summary: A heap buffer overflow may lead to a crash or possibly attacker controlled code execution or other undefined behaviour.  In ASN1_mbstring_copy() and ASN1_mbstring_ncopy() the destination size for Unicode output is computed in a signed int: by left shift of the input character count for BMPSTRING (UTF-16) and UNIVERSALSTRING (UTF-32), and by summing per-character byte counts for UTF8STRING. The calculation overflows when the input reaches around 2^30 characters. In the worst case (UNIVERSALSTRING at 2^30 characters) the size wraps to zero, OPENSSL_malloc(1) is called, and the subsequent character copy writes several gigabytes past the one-byte allocation.  X.509 certificate processing routes through ASN1_STRING_set_by_NID(), whose DIRSTRING_TYPE mask excludes UNIVERSALSTRING and whose per-NID size limits cap the input length; no network protocol or certificate-handling path in OpenSSL exercises the overflow. Triggering the bug requires an application that calls ASN1_mbstring_copy() or ASN1_mbstring_ncopy() directly, or registers a custom string type via ASN1_STRING_TABLE_add(), with attacker-controlled input on the order of half a gigabyte or more. For these reasons this issue was assigned Low severity.  The FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-7383","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":8.1,"impactScore":5.9,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-7383","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-7383","date":"2026-10-27","epss":0.00804,"percentile":0.56535}],"urls":["https://github.com/openssl/openssl/commit/4f8d2bddaa2c8e06f9c33390ee1717059a6e4be6","https://github.com/openssl/openssl/commit/80c15faaf78042bbb8654a0e234c50c381732f74","https://github.com/openssl/openssl/commit/bd17511070fb39a67bfa19682affb765e706a974","https://github.com/openssl/openssl/commit/c332adaced43bcbb85f97410597e951c11ec3083","https://github.com/openssl/openssl/commit/d32350ae8ef7426718f5aa9e383d4b51398ee255","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-7383","description":"Issue summary: A signed integer overflow when sizing the destination\nbuffer for Unicode output in ASN1_mbstring_ncopy() can lead to a heap\nbuffer overflow.\n\nImpact summary: A heap buffer overflow may lead to a crash or possibly\nattacker controlled code execution or other undefined behaviour.\n\nIn ASN1_mbstring_copy() and ASN1_mbstring_ncopy() the destination\nsize for Unicode output is computed in a signed int: by left shift\nof the input character count for BMPSTRING (UTF-16) and\nUNIVERSALSTRING (UTF-32), and by summing per-character byte counts\nfor UTF8STRING. The calculation overflows when the input reaches\naround 2^30 characters. In the worst case (UNIVERSALSTRING at 2^30\ncharacters) the size wraps to zero, OPENSSL_malloc(1) is called, and\nthe subsequent character copy writes several gigabytes past the\none-byte allocation.\n\nX.509 certificate processing routes through ASN1_STRING_set_by_NID(),\nwhose DIRSTRING_TYPE mask excludes UNIVERSALSTRING and whose per-NID\nsize limits cap the input length; no network protocol or\ncertificate-handling path in OpenSSL exercises the overflow.\nTriggering the bug requires an application that calls\nASN1_mbstring_copy() or ASN1_mbstring_ncopy() directly, or registers\na custom string type via ASN1_STRING_TABLE_add(), with\nattacker-controlled input on the order of half a gigabyte or more.\nFor these reasons this issue was assigned Low severity.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by\nthis issue, as the affected code is outside the OpenSSL FIPS module\nboundary."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-7383","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-7383","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":8.1,"impactScore":5.9,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-7383","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-7383","date":"2026-10-27","epss":0.00804,"percentile":0.56535}],"risk":0.62712,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-7383","description":"Issue summary: A signed integer overflow when sizing the destination buffer for Unicode output in ASN1_mbstring_ncopy() can lead to a heap buffer overflow.  Impact summary: A heap buffer overflow may lead to a crash or possibly attacker controlled code execution or other undefined behaviour.  In ASN1_mbstring_copy() and ASN1_mbstring_ncopy() the destination size for Unicode output is computed in a signed int: by left shift of the input character count for BMPSTRING (UTF-16) and UNIVERSALSTRING (UTF-32), and by summing per-character byte counts for UTF8STRING. The calculation overflows when the input reaches around 2^30 characters. In the worst case (UNIVERSALSTRING at 2^30 characters) the size wraps to zero, OPENSSL_malloc(1) is called, and the subsequent character copy writes several gigabytes past the one-byte allocation.  X.509 certificate processing routes through ASN1_STRING_set_by_NID(), whose DIRSTRING_TYPE mask excludes UNIVERSALSTRING and whose per-NID size limits cap the input length; no network protocol or certificate-handling path in OpenSSL exercises the overflow. Triggering the bug requires an application that calls ASN1_mbstring_copy() or ASN1_mbstring_ncopy() directly, or registers a custom string type via ASN1_STRING_TABLE_add(), with attacker-controlled input on the order of half a gigabyte or more. For these reasons this issue was assigned Low severity.  The FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-7383","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":8.1,"impactScore":5.9,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-7383","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-7383","date":"2026-10-27","epss":0.00804,"percentile":0.56535}],"urls":["https://github.com/openssl/openssl/commit/4f8d2bddaa2c8e06f9c33390ee1717059a6e4be6","https://github.com/openssl/openssl/commit/80c15faaf78042bbb8654a0e234c50c381732f74","https://github.com/openssl/openssl/commit/bd17511070fb39a67bfa19682affb765e706a974","https://github.com/openssl/openssl/commit/c332adaced43bcbb85f97410597e951c11ec3083","https://github.com/openssl/openssl/commit/d32350ae8ef7426718f5aa9e383d4b51398ee255","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-7383","description":"Issue summary: A signed integer overflow when sizing the destination\nbuffer for Unicode output in ASN1_mbstring_ncopy() can lead to a heap\nbuffer overflow.\n\nImpact summary: A heap buffer overflow may lead to a crash or possibly\nattacker controlled code execution or other undefined behaviour.\n\nIn ASN1_mbstring_copy() and ASN1_mbstring_ncopy() the destination\nsize for Unicode output is computed in a signed int: by left shift\nof the input character count for BMPSTRING (UTF-16) and\nUNIVERSALSTRING (UTF-32), and by summing per-character byte counts\nfor UTF8STRING. The calculation overflows when the input reaches\naround 2^30 characters. In the worst case (UNIVERSALSTRING at 2^30\ncharacters) the size wraps to zero, OPENSSL_malloc(1) is called, and\nthe subsequent character copy writes several gigabytes past the\none-byte allocation.\n\nX.509 certificate processing routes through ASN1_STRING_set_by_NID(),\nwhose DIRSTRING_TYPE mask excludes UNIVERSALSTRING and whose per-NID\nsize limits cap the input length; no network protocol or\ncertificate-handling path in OpenSSL exercises the overflow.\nTriggering the bug requires an application that calls\nASN1_mbstring_copy() or ASN1_mbstring_ncopy() directly, or registers\na custom string type via ASN1_STRING_TABLE_add(), with\nattacker-controlled input on the order of half a gigabyte or more.\nFor these reasons this issue was assigned Low severity.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by\nthis issue, as the affected code is outside the OpenSSL FIPS module\nboundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-7383","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-7383","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":8.1,"impactScore":5.9,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-7383","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-7383","date":"2026-10-27","epss":0.00804,"percentile":0.56535}],"risk":0.62712,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-7383","description":"Issue summary: A signed integer overflow when sizing the destination buffer for Unicode output in ASN1_mbstring_ncopy() can lead to a heap buffer overflow.  Impact summary: A heap buffer overflow may lead to a crash or possibly attacker controlled code execution or other undefined behaviour.  In ASN1_mbstring_copy() and ASN1_mbstring_ncopy() the destination size for Unicode output is computed in a signed int: by left shift of the input character count for BMPSTRING (UTF-16) and UNIVERSALSTRING (UTF-32), and by summing per-character byte counts for UTF8STRING. The calculation overflows when the input reaches around 2^30 characters. In the worst case (UNIVERSALSTRING at 2^30 characters) the size wraps to zero, OPENSSL_malloc(1) is called, and the subsequent character copy writes several gigabytes past the one-byte allocation.  X.509 certificate processing routes through ASN1_STRING_set_by_NID(), whose DIRSTRING_TYPE mask excludes UNIVERSALSTRING and whose per-NID size limits cap the input length; no network protocol or certificate-handling path in OpenSSL exercises the overflow. Triggering the bug requires an application that calls ASN1_mbstring_copy() or ASN1_mbstring_ncopy() directly, or registers a custom string type via ASN1_STRING_TABLE_add(), with attacker-controlled input on the order of half a gigabyte or more. For these reasons this issue was assigned Low severity.  The FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-7383","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":8.1,"impactScore":5.9,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-7383","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-7383","date":"2026-10-27","epss":0.00804,"percentile":0.56535}],"urls":["https://github.com/openssl/openssl/commit/4f8d2bddaa2c8e06f9c33390ee1717059a6e4be6","https://github.com/openssl/openssl/commit/80c15faaf78042bbb8654a0e234c50c381732f74","https://github.com/openssl/openssl/commit/bd17511070fb39a67bfa19682affb765e706a974","https://github.com/openssl/openssl/commit/c332adaced43bcbb85f97410597e951c11ec3083","https://github.com/openssl/openssl/commit/d32350ae8ef7426718f5aa9e383d4b51398ee255","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-7383","description":"Issue summary: A signed integer overflow when sizing the destination\nbuffer for Unicode output in ASN1_mbstring_ncopy() can lead to a heap\nbuffer overflow.\n\nImpact summary: A heap buffer overflow may lead to a crash or possibly\nattacker controlled code execution or other undefined behaviour.\n\nIn ASN1_mbstring_copy() and ASN1_mbstring_ncopy() the destination\nsize for Unicode output is computed in a signed int: by left shift\nof the input character count for BMPSTRING (UTF-16) and\nUNIVERSALSTRING (UTF-32), and by summing per-character byte counts\nfor UTF8STRING. The calculation overflows when the input reaches\naround 2^30 characters. In the worst case (UNIVERSALSTRING at 2^30\ncharacters) the size wraps to zero, OPENSSL_malloc(1) is called, and\nthe subsequent character copy writes several gigabytes past the\none-byte allocation.\n\nX.509 certificate processing routes through ASN1_STRING_set_by_NID(),\nwhose DIRSTRING_TYPE mask excludes UNIVERSALSTRING and whose per-NID\nsize limits cap the input length; no network protocol or\ncertificate-handling path in OpenSSL exercises the overflow.\nTriggering the bug requires an application that calls\nASN1_mbstring_copy() or ASN1_mbstring_ncopy() directly, or registers\na custom string type via ASN1_STRING_TABLE_add(), with\nattacker-controlled input on the order of half a gigabyte or more.\nFor these reasons this issue was assigned Low severity.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by\nthis issue, as the affected code is outside the OpenSSL FIPS module\nboundary."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-7383","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-7383","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":8.1,"impactScore":5.9,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-7383","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-7383","date":"2026-10-27","epss":0.00804,"percentile":0.56535}],"risk":0.62712,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-7383","description":"Issue summary: A signed integer overflow when sizing the destination buffer for Unicode output in ASN1_mbstring_ncopy() can lead to a heap buffer overflow.  Impact summary: A heap buffer overflow may lead to a crash or possibly attacker controlled code execution or other undefined behaviour.  In ASN1_mbstring_copy() and ASN1_mbstring_ncopy() the destination size for Unicode output is computed in a signed int: by left shift of the input character count for BMPSTRING (UTF-16) and UNIVERSALSTRING (UTF-32), and by summing per-character byte counts for UTF8STRING. The calculation overflows when the input reaches around 2^30 characters. In the worst case (UNIVERSALSTRING at 2^30 characters) the size wraps to zero, OPENSSL_malloc(1) is called, and the subsequent character copy writes several gigabytes past the one-byte allocation.  X.509 certificate processing routes through ASN1_STRING_set_by_NID(), whose DIRSTRING_TYPE mask excludes UNIVERSALSTRING and whose per-NID size limits cap the input length; no network protocol or certificate-handling path in OpenSSL exercises the overflow. Triggering the bug requires an application that calls ASN1_mbstring_copy() or ASN1_mbstring_ncopy() directly, or registers a custom string type via ASN1_STRING_TABLE_add(), with attacker-controlled input on the order of half a gigabyte or more. For these reasons this issue was assigned Low severity.  The FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-7383","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":8.1,"impactScore":5.9,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-7383","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-7383","date":"2026-10-27","epss":0.00804,"percentile":0.56535}],"urls":["https://github.com/openssl/openssl/commit/4f8d2bddaa2c8e06f9c33390ee1717059a6e4be6","https://github.com/openssl/openssl/commit/80c15faaf78042bbb8654a0e234c50c381732f74","https://github.com/openssl/openssl/commit/bd17511070fb39a67bfa19682affb765e706a974","https://github.com/openssl/openssl/commit/c332adaced43bcbb85f97410597e951c11ec3083","https://github.com/openssl/openssl/commit/d32350ae8ef7426718f5aa9e383d4b51398ee255","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-7383","description":"Issue summary: A signed integer overflow when sizing the destination\nbuffer for Unicode output in ASN1_mbstring_ncopy() can lead to a heap\nbuffer overflow.\n\nImpact summary: A heap buffer overflow may lead to a crash or possibly\nattacker controlled code execution or other undefined behaviour.\n\nIn ASN1_mbstring_copy() and ASN1_mbstring_ncopy() the destination\nsize for Unicode output is computed in a signed int: by left shift\nof the input character count for BMPSTRING (UTF-16) and\nUNIVERSALSTRING (UTF-32), and by summing per-character byte counts\nfor UTF8STRING. The calculation overflows when the input reaches\naround 2^30 characters. In the worst case (UNIVERSALSTRING at 2^30\ncharacters) the size wraps to zero, OPENSSL_malloc(1) is called, and\nthe subsequent character copy writes several gigabytes past the\none-byte allocation.\n\nX.509 certificate processing routes through ASN1_STRING_set_by_NID(),\nwhose DIRSTRING_TYPE mask excludes UNIVERSALSTRING and whose per-NID\nsize limits cap the input length; no network protocol or\ncertificate-handling path in OpenSSL exercises the overflow.\nTriggering the bug requires an application that calls\nASN1_mbstring_copy() or ASN1_mbstring_ncopy() directly, or registers\na custom string type via ASN1_STRING_TABLE_add(), with\nattacker-controlled input on the order of half a gigabyte or more.\nFor these reasons this issue was assigned Low severity.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by\nthis issue, as the affected code is outside the OpenSSL FIPS module\nboundary."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-42766","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-42766","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":5.9,"impactScore":3.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42766","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42766","date":"2026-10-27","epss":0.0106,"percentile":0.64367}],"risk":0.5777,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-42766","description":"Issue summary: A specially crafted password-encrypted CMS message can trigger a NULL pointer dereference during CMS decryption.  Impact summary: This NULL pointer dereference leads to an application crash and a Denial of Service.  The CMS PasswordRecipientInfo.keyDerivationAlgorithm field is defined as OPTIONAL in the ASN.1 specification and may therefore be absent in specially crafted inputs. During the password-based CMS decryption the OpenSSL CMS implementation dereferences this field without first checking whether it was present.  An attacker who supplies such a CMS message to an application performing password-based CMS decryption can trigger an application crash, leading to a Denial of Service.  Applications that process password-encrypted CMS messages may be affected.  The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-42766","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":5.9,"impactScore":3.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42766","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42766","date":"2026-10-27","epss":0.0106,"percentile":0.64367}],"urls":["https://github.com/openssl/openssl/commit/056d06c1918fafbb98c1c85a02e4c47cc4e199ce","https://github.com/openssl/openssl/commit/12bc26ffb3a2be728c9b86e1cae277de5b33dfa4","https://github.com/openssl/openssl/commit/3ff64913615d648cfbb6a6f1cf5529ae7ea829d7","https://github.com/openssl/openssl/commit/ab52d88cb5374876d59aee3c91f9e4ccce2b7ce4","https://github.com/openssl/openssl/commit/da26f368732b83e40e9d356fe61c3d3aaab6d2e8","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-42766","description":"Issue summary: A specially crafted password-encrypted CMS message\ncan trigger a NULL pointer dereference during CMS decryption.\n\nImpact summary: This NULL pointer dereference leads to an application crash\nand a Denial of Service.\n\nThe CMS PasswordRecipientInfo.keyDerivationAlgorithm field is defined as\nOPTIONAL in the ASN.1 specification and may therefore be absent in specially\ncrafted inputs. During the password-based CMS decryption the OpenSSL\nCMS implementation dereferences this field without first checking whether it\nwas present.\n\nAn attacker who supplies such a CMS message to an application performing\npassword-based CMS decryption can trigger an application crash, leading to\na Denial of Service.\n\nApplications that process password-encrypted CMS messages may be affected.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this\nissue, as the affected code is outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-42766","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-42766","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":5.9,"impactScore":3.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42766","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42766","date":"2026-10-27","epss":0.0106,"percentile":0.64367}],"risk":0.5777,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-42766","description":"Issue summary: A specially crafted password-encrypted CMS message can trigger a NULL pointer dereference during CMS decryption.  Impact summary: This NULL pointer dereference leads to an application crash and a Denial of Service.  The CMS PasswordRecipientInfo.keyDerivationAlgorithm field is defined as OPTIONAL in the ASN.1 specification and may therefore be absent in specially crafted inputs. During the password-based CMS decryption the OpenSSL CMS implementation dereferences this field without first checking whether it was present.  An attacker who supplies such a CMS message to an application performing password-based CMS decryption can trigger an application crash, leading to a Denial of Service.  Applications that process password-encrypted CMS messages may be affected.  The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-42766","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":5.9,"impactScore":3.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42766","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42766","date":"2026-10-27","epss":0.0106,"percentile":0.64367}],"urls":["https://github.com/openssl/openssl/commit/056d06c1918fafbb98c1c85a02e4c47cc4e199ce","https://github.com/openssl/openssl/commit/12bc26ffb3a2be728c9b86e1cae277de5b33dfa4","https://github.com/openssl/openssl/commit/3ff64913615d648cfbb6a6f1cf5529ae7ea829d7","https://github.com/openssl/openssl/commit/ab52d88cb5374876d59aee3c91f9e4ccce2b7ce4","https://github.com/openssl/openssl/commit/da26f368732b83e40e9d356fe61c3d3aaab6d2e8","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-42766","description":"Issue summary: A specially crafted password-encrypted CMS message\ncan trigger a NULL pointer dereference during CMS decryption.\n\nImpact summary: This NULL pointer dereference leads to an application crash\nand a Denial of Service.\n\nThe CMS PasswordRecipientInfo.keyDerivationAlgorithm field is defined as\nOPTIONAL in the ASN.1 specification and may therefore be absent in specially\ncrafted inputs. During the password-based CMS decryption the OpenSSL\nCMS implementation dereferences this field without first checking whether it\nwas present.\n\nAn attacker who supplies such a CMS message to an application performing\npassword-based CMS decryption can trigger an application crash, leading to\na Denial of Service.\n\nApplications that process password-encrypted CMS messages may be affected.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this\nissue, as the affected code is outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-42766","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-42766","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":5.9,"impactScore":3.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42766","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42766","date":"2026-10-27","epss":0.0106,"percentile":0.64367}],"risk":0.5777,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-42766","description":"Issue summary: A specially crafted password-encrypted CMS message can trigger a NULL pointer dereference during CMS decryption.  Impact summary: This NULL pointer dereference leads to an application crash and a Denial of Service.  The CMS PasswordRecipientInfo.keyDerivationAlgorithm field is defined as OPTIONAL in the ASN.1 specification and may therefore be absent in specially crafted inputs. During the password-based CMS decryption the OpenSSL CMS implementation dereferences this field without first checking whether it was present.  An attacker who supplies such a CMS message to an application performing password-based CMS decryption can trigger an application crash, leading to a Denial of Service.  Applications that process password-encrypted CMS messages may be affected.  The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-42766","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":5.9,"impactScore":3.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42766","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42766","date":"2026-10-27","epss":0.0106,"percentile":0.64367}],"urls":["https://github.com/openssl/openssl/commit/056d06c1918fafbb98c1c85a02e4c47cc4e199ce","https://github.com/openssl/openssl/commit/12bc26ffb3a2be728c9b86e1cae277de5b33dfa4","https://github.com/openssl/openssl/commit/3ff64913615d648cfbb6a6f1cf5529ae7ea829d7","https://github.com/openssl/openssl/commit/ab52d88cb5374876d59aee3c91f9e4ccce2b7ce4","https://github.com/openssl/openssl/commit/da26f368732b83e40e9d356fe61c3d3aaab6d2e8","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-42766","description":"Issue summary: A specially crafted password-encrypted CMS message\ncan trigger a NULL pointer dereference during CMS decryption.\n\nImpact summary: This NULL pointer dereference leads to an application crash\nand a Denial of Service.\n\nThe CMS PasswordRecipientInfo.keyDerivationAlgorithm field is defined as\nOPTIONAL in the ASN.1 specification and may therefore be absent in specially\ncrafted inputs. During the password-based CMS decryption the OpenSSL\nCMS implementation dereferences this field without first checking whether it\nwas present.\n\nAn attacker who supplies such a CMS message to an application performing\npassword-based CMS decryption can trigger an application crash, leading to\na Denial of Service.\n\nApplications that process password-encrypted CMS messages may be affected.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this\nissue, as the affected code is outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-42766","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-42766","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":5.9,"impactScore":3.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42766","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42766","date":"2026-10-27","epss":0.0106,"percentile":0.64367}],"risk":0.5777,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-42766","description":"Issue summary: A specially crafted password-encrypted CMS message can trigger a NULL pointer dereference during CMS decryption.  Impact summary: This NULL pointer dereference leads to an application crash and a Denial of Service.  The CMS PasswordRecipientInfo.keyDerivationAlgorithm field is defined as OPTIONAL in the ASN.1 specification and may therefore be absent in specially crafted inputs. During the password-based CMS decryption the OpenSSL CMS implementation dereferences this field without first checking whether it was present.  An attacker who supplies such a CMS message to an application performing password-based CMS decryption can trigger an application crash, leading to a Denial of Service.  Applications that process password-encrypted CMS messages may be affected.  The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-42766","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":5.9,"impactScore":3.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42766","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42766","date":"2026-10-27","epss":0.0106,"percentile":0.64367}],"urls":["https://github.com/openssl/openssl/commit/056d06c1918fafbb98c1c85a02e4c47cc4e199ce","https://github.com/openssl/openssl/commit/12bc26ffb3a2be728c9b86e1cae277de5b33dfa4","https://github.com/openssl/openssl/commit/3ff64913615d648cfbb6a6f1cf5529ae7ea829d7","https://github.com/openssl/openssl/commit/ab52d88cb5374876d59aee3c91f9e4ccce2b7ce4","https://github.com/openssl/openssl/commit/da26f368732b83e40e9d356fe61c3d3aaab6d2e8","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-42766","description":"Issue summary: A specially crafted password-encrypted CMS message\ncan trigger a NULL pointer dereference during CMS decryption.\n\nImpact summary: This NULL pointer dereference leads to an application crash\nand a Denial of Service.\n\nThe CMS PasswordRecipientInfo.keyDerivationAlgorithm field is defined as\nOPTIONAL in the ASN.1 specification and may therefore be absent in specially\ncrafted inputs. During the password-based CMS decryption the OpenSSL\nCMS implementation dereferences this field without first checking whether it\nwas present.\n\nAn attacker who supplies such a CMS message to an application performing\npassword-based CMS decryption can trigger an application crash, leading to\na Denial of Service.\n\nApplications that process password-encrypted CMS messages may be affected.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this\nissue, as the affected code is outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-75806","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-75806","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75806","cwe":"CWE-1284","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75806","date":"2026-10-27","epss":0.01104,"percentile":0.65601}],"risk":0.56856,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-75806","description":"Issue summary: An established DTLS 1.2 association using an AEAD cipher suite can be terminated by a single unauthenticated datagram whose encrypted fragment is shorter than the mandatory explicit IV and authentication tag overhead.  Impact summary: An attacker who can send a datagram that is routed to an existing DTLS 1.2 association can tear that association down without knowing any key material. This is a Denial of Service limited to the targeted association. There is no memory safety or confidentiality impact.  CWE: CWE-1284: Improper Validation of Specified Quantity in Input  Description: In TLS 1.2 and DTLS 1.2 every record protected by an AEAD cipher suite carries an explicit IV followed by the ciphertext and an authentication tag. When decrypting such a record the record layer passed the record length to the cipher implementation before checking that the record was long enough to contain the explicit IV and the tag. For a record shorter than that overhead the cipher implementation rejected the impossible length, and the record layer treated this as an internal failure and raised a fatal internal_error alert instead of treating the record as one that failed authentication.  In TLS 1.2 the same record causes a fatal internal_error alert instead of the expected bad_record_mac alert. Since any undecryptable record already terminates a TLS connection, this is a protocol conformance issue rather than a security issue in TLS.  The fix validates the record length against the explicit IV and tag length before any AEAD processing, so that TLS reports bad_record_mac and DTLS silently discards the record.  FIPS impact: no The affected code is outside the FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-75806","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75806","cwe":"CWE-1284","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75806","date":"2026-10-27","epss":0.01104,"percentile":0.65601}],"urls":["https://github.com/openssl/openssl/commit/04728a289a823e68137f88da016cb9ede307217d","https://github.com/openssl/openssl/commit/050b275cd671a6eed1d6457642d41a5a77aab972","https://github.com/openssl/openssl/commit/3a4589d015a9049d47b66f186cf50a8711343a1d","https://github.com/openssl/openssl/commit/5af82fefbaf2b5fec2fc0e1d87f112844902f01d","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-75806","description":"Issue summary: An established DTLS 1.2 association using an AEAD cipher suite\ncan be terminated by a single unauthenticated datagram whose encrypted\nfragment is shorter than the mandatory explicit IV and authentication tag\noverhead.\n\nImpact summary: An attacker who can send a datagram that is routed to an\nexisting DTLS 1.2 association can tear that association down without knowing\nany key material. This is a Denial of Service limited to the targeted\nassociation. There is no memory safety or confidentiality impact.\n\nCWE: CWE-1284: Improper Validation of Specified Quantity in Input\n\nDescription: In TLS 1.2 and DTLS 1.2 every record protected by an AEAD cipher\nsuite carries an explicit IV followed by the ciphertext and an authentication\ntag. When decrypting such a record the record layer passed the record length to\nthe cipher implementation before checking that the record was long enough to\ncontain the explicit IV and the tag. For a record shorter than that overhead the\ncipher implementation rejected the impossible length, and the record layer\ntreated this as an internal failure and raised a fatal internal_error alert\ninstead of treating the record as one that failed authentication.\n\nIn TLS 1.2 the same record causes a fatal internal_error alert instead of the\nexpected bad_record_mac alert. 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In TLS 1.2 the same record causes a fatal internal_error alert instead of the expected bad_record_mac alert. Since any undecryptable record already terminates a TLS connection, this is a protocol conformance issue rather than a security issue in TLS.  The fix validates the record length against the explicit IV and tag length before any AEAD processing, so that TLS reports bad_record_mac and DTLS silently discards the record.  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This is a Denial of Service limited to the targeted\nassociation. There is no memory safety or confidentiality impact.\n\nCWE: CWE-1284: Improper Validation of Specified Quantity in Input\n\nDescription: In TLS 1.2 and DTLS 1.2 every record protected by an AEAD cipher\nsuite carries an explicit IV followed by the ciphertext and an authentication\ntag. When decrypting such a record the record layer passed the record length to\nthe cipher implementation before checking that the record was long enough to\ncontain the explicit IV and the tag. For a record shorter than that overhead the\ncipher implementation rejected the impossible length, and the record layer\ntreated this as an internal failure and raised a fatal internal_error alert\ninstead of treating the record as one that failed authentication.\n\nIn TLS 1.2 the same record causes a fatal internal_error alert instead of the\nexpected bad_record_mac alert. Since any undecryptable record already\nterminates a TLS connection, this is a protocol conformance issue rather than\na security issue in TLS.\n\nThe fix validates the record length against the explicit IV and tag length\nbefore any AEAD processing, so that TLS reports bad_record_mac and DTLS\nsilently discards the record.\n\nFIPS impact: no\nThe affected code is outside the FIPS module boundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-75806","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-75806","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75806","cwe":"CWE-1284","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75806","date":"2026-10-27","epss":0.01104,"percentile":0.65601}],"risk":0.56856,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-75806","description":"Issue summary: An established DTLS 1.2 association using an AEAD cipher suite can be terminated by a single unauthenticated datagram whose encrypted fragment is shorter than the mandatory explicit IV and authentication tag overhead.  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In TLS 1.2 the same record causes a fatal internal_error alert instead of the expected bad_record_mac alert. Since any undecryptable record already terminates a TLS connection, this is a protocol conformance issue rather than a security issue in TLS.  The fix validates the record length against the explicit IV and tag length before any AEAD processing, so that TLS reports bad_record_mac and DTLS silently discards the record.  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This is a Denial of Service limited to the targeted\nassociation. There is no memory safety or confidentiality impact.\n\nCWE: CWE-1284: Improper Validation of Specified Quantity in Input\n\nDescription: In TLS 1.2 and DTLS 1.2 every record protected by an AEAD cipher\nsuite carries an explicit IV followed by the ciphertext and an authentication\ntag. When decrypting such a record the record layer passed the record length to\nthe cipher implementation before checking that the record was long enough to\ncontain the explicit IV and the tag. For a record shorter than that overhead the\ncipher implementation rejected the impossible length, and the record layer\ntreated this as an internal failure and raised a fatal internal_error alert\ninstead of treating the record as one that failed authentication.\n\nIn TLS 1.2 the same record causes a fatal internal_error alert instead of the\nexpected bad_record_mac alert. Since any undecryptable record already\nterminates a TLS connection, this is a protocol conformance issue rather than\na security issue in TLS.\n\nThe fix validates the record length against the explicit IV and tag length\nbefore any AEAD processing, so that TLS reports bad_record_mac and DTLS\nsilently discards the record.\n\nFIPS impact: no\nThe affected code is outside the FIPS module boundary."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-75806","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-75806","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75806","cwe":"CWE-1284","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75806","date":"2026-10-27","epss":0.01104,"percentile":0.65601}],"risk":0.56856,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-75806","description":"Issue summary: An established DTLS 1.2 association using an AEAD cipher suite can be terminated by a single unauthenticated datagram whose encrypted fragment is shorter than the mandatory explicit IV and authentication tag overhead.  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In TLS 1.2 the same record causes a fatal internal_error alert instead of the expected bad_record_mac alert. Since any undecryptable record already terminates a TLS connection, this is a protocol conformance issue rather than a security issue in TLS.  The fix validates the record length against the explicit IV and tag length before any AEAD processing, so that TLS reports bad_record_mac and DTLS silently discards the record.  FIPS impact: no The affected code is outside the FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-75806","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75806","cwe":"CWE-1284","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75806","date":"2026-10-27","epss":0.01104,"percentile":0.65601}],"urls":["https://github.com/openssl/openssl/commit/04728a289a823e68137f88da016cb9ede307217d","https://github.com/openssl/openssl/commit/050b275cd671a6eed1d6457642d41a5a77aab972","https://github.com/openssl/openssl/commit/3a4589d015a9049d47b66f186cf50a8711343a1d","https://github.com/openssl/openssl/commit/5af82fefbaf2b5fec2fc0e1d87f112844902f01d","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-75806","description":"Issue summary: An established DTLS 1.2 association using an AEAD cipher suite\ncan be terminated by a single unauthenticated datagram whose encrypted\nfragment is shorter than the mandatory explicit IV and authentication tag\noverhead.\n\nImpact summary: An attacker who can send a datagram that is routed to an\nexisting DTLS 1.2 association can tear that association down without knowing\nany key material. This is a Denial of Service limited to the targeted\nassociation. There is no memory safety or confidentiality impact.\n\nCWE: CWE-1284: Improper Validation of Specified Quantity in Input\n\nDescription: In TLS 1.2 and DTLS 1.2 every record protected by an AEAD cipher\nsuite carries an explicit IV followed by the ciphertext and an authentication\ntag. When decrypting such a record the record layer passed the record length to\nthe cipher implementation before checking that the record was long enough to\ncontain the explicit IV and the tag. For a record shorter than that overhead the\ncipher implementation rejected the impossible length, and the record layer\ntreated this as an internal failure and raised a fatal internal_error alert\ninstead of treating the record as one that failed authentication.\n\nIn TLS 1.2 the same record causes a fatal internal_error alert instead of the\nexpected bad_record_mac alert. Since any undecryptable record already\nterminates a TLS connection, this is a protocol conformance issue rather than\na security issue in TLS.\n\nThe fix validates the record length against the explicit IV and tag length\nbefore any AEAD processing, so that TLS reports bad_record_mac and DTLS\nsilently discards the record.\n\nFIPS impact: no\nThe affected code is outside the FIPS module boundary."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-14456","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-14456","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-14456","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-14456","date":"2026-10-27","epss":0.00729,"percentile":0.54027}],"risk":0.5467500000000001,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-14456","description":"Issue summary: When an OpenSSL QUIC server (Listener SSL object) processes valid QUIC Initial packets for unknown destination connection IDs, it can allocate and queue new incoming channels without enforcing any limit.  Impact summary: A remote peer that can make many Initial packets reach the server listener faster than the application accepts connections, can cause the memory allocated to store the per-channel state to grow without any limits, potentially making the QUIC listener unavailable and causing Denial of Service.  CWE: CWE-770: Allocation of Resources Without Limits or Throttling  Description: The function that handles inbound QUIC packets uses Connection-Id from the packet header to find an existing connection (QUIC channel). If no existing connection is found and the packet type is INITIAL, the function treats the packet as a new connection. It allocates a new channel object and inserts it into a queue where it waits to be accepted by the local application with SSL_accept(3ossl). The memory occupied by these initial channel objects may grow without bounds if the application is not able to call SSL_accept() frequently enough to serve these inbound connection requests.  The issue is present since OpenSSL 3.5 when the QUIC server implementation was added.  The fix introduces a limit for pending connections. The default limit is set to 256 pending connections (waiting to be accepted by the local application). Applications may change the default by calling SSL_set_value_uint(3ossl).  FIPS impact: no The FIPS module is not affected as the QUIC implementation is outside of the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-14456","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-14456","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-14456","date":"2026-10-27","epss":0.00729,"percentile":0.54027}],"urls":["https://github.com/openssl/openssl/commit/08e7756c3900bcfd77a720e7b74e27d6e4ed01a9","https://github.com/openssl/openssl/commit/4084152e040329ca0194c4c1750b9b46d00a5b6b","https://github.com/openssl/openssl/commit/f2f1465f2d2e5c61dfeac4d20fd093797d821139","https://openssl-library.org/news/secadv/20260813.txt","http://www.openwall.com/lists/oss-security/2026/08/13/4"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-14456","description":"Issue summary: When an OpenSSL QUIC server (Listener SSL object) processes\nvalid QUIC Initial packets for unknown destination connection IDs, it\ncan allocate and queue new incoming channels without enforcing any limit.\n\nImpact summary: A remote peer that can make many Initial packets reach the\nserver listener faster than the application accepts connections, can cause the\nmemory allocated to store the per-channel state to grow without any limits,\npotentially making the QUIC listener unavailable and causing Denial of Service.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: The function that handles inbound QUIC packets uses\nConnection-Id from the packet header to find an existing connection\n(QUIC channel). If no existing connection is found and the packet\ntype is INITIAL, the function treats the packet as a new connection. It\nallocates a new channel object and inserts it into a queue where it\nwaits to be accepted by the local application with SSL_accept(3ossl).\nThe memory occupied by these initial channel objects may grow\nwithout bounds if the application is not able to call SSL_accept()\nfrequently enough to serve these inbound connection requests.\n\nThe issue is present since OpenSSL 3.5 when the QUIC server implementation\nwas added.\n\nThe fix introduces a limit for pending connections. The default limit is set\nto 256 pending connections (waiting to be accepted by the local application).\nApplications may change the default by calling SSL_set_value_uint(3ossl).\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-14456","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-14456","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-14456","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-14456","date":"2026-10-27","epss":0.00729,"percentile":0.54027}],"risk":0.5467500000000001,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-14456","description":"Issue summary: When an OpenSSL QUIC server (Listener SSL object) processes valid QUIC Initial packets for unknown destination connection IDs, it can allocate and queue new incoming channels without enforcing any limit.  Impact summary: A remote peer that can make many Initial packets reach the server listener faster than the application accepts connections, can cause the memory allocated to store the per-channel state to grow without any limits, potentially making the QUIC listener unavailable and causing Denial of Service.  CWE: CWE-770: Allocation of Resources Without Limits or Throttling  Description: The function that handles inbound QUIC packets uses Connection-Id from the packet header to find an existing connection (QUIC channel). If no existing connection is found and the packet type is INITIAL, the function treats the packet as a new connection. It allocates a new channel object and inserts it into a queue where it waits to be accepted by the local application with SSL_accept(3ossl). The memory occupied by these initial channel objects may grow without bounds if the application is not able to call SSL_accept() frequently enough to serve these inbound connection requests.  The issue is present since OpenSSL 3.5 when the QUIC server implementation was added.  The fix introduces a limit for pending connections. The default limit is set to 256 pending connections (waiting to be accepted by the local application). Applications may change the default by calling SSL_set_value_uint(3ossl).  FIPS impact: no The FIPS module is not affected as the QUIC implementation is outside of the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-14456","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-14456","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-14456","date":"2026-10-27","epss":0.00729,"percentile":0.54027}],"urls":["https://github.com/openssl/openssl/commit/08e7756c3900bcfd77a720e7b74e27d6e4ed01a9","https://github.com/openssl/openssl/commit/4084152e040329ca0194c4c1750b9b46d00a5b6b","https://github.com/openssl/openssl/commit/f2f1465f2d2e5c61dfeac4d20fd093797d821139","https://openssl-library.org/news/secadv/20260813.txt","http://www.openwall.com/lists/oss-security/2026/08/13/4"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-14456","description":"Issue summary: When an OpenSSL QUIC server (Listener SSL object) processes\nvalid QUIC Initial packets for unknown destination connection IDs, it\ncan allocate and queue new incoming channels without enforcing any limit.\n\nImpact summary: A remote peer that can make many Initial packets reach the\nserver listener faster than the application accepts connections, can cause the\nmemory allocated to store the per-channel state to grow without any limits,\npotentially making the QUIC listener unavailable and causing Denial of Service.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: The function that handles inbound QUIC packets uses\nConnection-Id from the packet header to find an existing connection\n(QUIC channel). If no existing connection is found and the packet\ntype is INITIAL, the function treats the packet as a new connection. It\nallocates a new channel object and inserts it into a queue where it\nwaits to be accepted by the local application with SSL_accept(3ossl).\nThe memory occupied by these initial channel objects may grow\nwithout bounds if the application is not able to call SSL_accept()\nfrequently enough to serve these inbound connection requests.\n\nThe issue is present since OpenSSL 3.5 when the QUIC server implementation\nwas added.\n\nThe fix introduces a limit for pending connections. The default limit is set\nto 256 pending connections (waiting to be accepted by the local application).\nApplications may change the default by calling SSL_set_value_uint(3ossl).\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-14456","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-14456","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-14456","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-14456","date":"2026-10-27","epss":0.00729,"percentile":0.54027}],"risk":0.5467500000000001,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-14456","description":"Issue summary: When an OpenSSL QUIC server (Listener SSL object) processes valid QUIC Initial packets for unknown destination connection IDs, it can allocate and queue new incoming channels without enforcing any limit.  Impact summary: A remote peer that can make many Initial packets reach the server listener faster than the application accepts connections, can cause the memory allocated to store the per-channel state to grow without any limits, potentially making the QUIC listener unavailable and causing Denial of Service.  CWE: CWE-770: Allocation of Resources Without Limits or Throttling  Description: The function that handles inbound QUIC packets uses Connection-Id from the packet header to find an existing connection (QUIC channel). If no existing connection is found and the packet type is INITIAL, the function treats the packet as a new connection. It allocates a new channel object and inserts it into a queue where it waits to be accepted by the local application with SSL_accept(3ossl). The memory occupied by these initial channel objects may grow without bounds if the application is not able to call SSL_accept() frequently enough to serve these inbound connection requests.  The issue is present since OpenSSL 3.5 when the QUIC server implementation was added.  The fix introduces a limit for pending connections. The default limit is set to 256 pending connections (waiting to be accepted by the local application). Applications may change the default by calling SSL_set_value_uint(3ossl).  FIPS impact: no The FIPS module is not affected as the QUIC implementation is outside of the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-14456","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-14456","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-14456","date":"2026-10-27","epss":0.00729,"percentile":0.54027}],"urls":["https://github.com/openssl/openssl/commit/08e7756c3900bcfd77a720e7b74e27d6e4ed01a9","https://github.com/openssl/openssl/commit/4084152e040329ca0194c4c1750b9b46d00a5b6b","https://github.com/openssl/openssl/commit/f2f1465f2d2e5c61dfeac4d20fd093797d821139","https://openssl-library.org/news/secadv/20260813.txt","http://www.openwall.com/lists/oss-security/2026/08/13/4"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-14456","description":"Issue summary: When an OpenSSL QUIC server (Listener SSL object) processes\nvalid QUIC Initial packets for unknown destination connection IDs, it\ncan allocate and queue new incoming channels without enforcing any limit.\n\nImpact summary: A remote peer that can make many Initial packets reach the\nserver listener faster than the application accepts connections, can cause the\nmemory allocated to store the per-channel state to grow without any limits,\npotentially making the QUIC listener unavailable and causing Denial of Service.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: The function that handles inbound QUIC packets uses\nConnection-Id from the packet header to find an existing connection\n(QUIC channel). If no existing connection is found and the packet\ntype is INITIAL, the function treats the packet as a new connection. It\nallocates a new channel object and inserts it into a queue where it\nwaits to be accepted by the local application with SSL_accept(3ossl).\nThe memory occupied by these initial channel objects may grow\nwithout bounds if the application is not able to call SSL_accept()\nfrequently enough to serve these inbound connection requests.\n\nThe issue is present since OpenSSL 3.5 when the QUIC server implementation\nwas added.\n\nThe fix introduces a limit for pending connections. The default limit is set\nto 256 pending connections (waiting to be accepted by the local application).\nApplications may change the default by calling SSL_set_value_uint(3ossl).\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-14456","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-14456","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-14456","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-14456","date":"2026-10-27","epss":0.00729,"percentile":0.54027}],"risk":0.5467500000000001,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-14456","description":"Issue summary: When an OpenSSL QUIC server (Listener SSL object) processes valid QUIC Initial packets for unknown destination connection IDs, it can allocate and queue new incoming channels without enforcing any limit.  Impact summary: A remote peer that can make many Initial packets reach the server listener faster than the application accepts connections, can cause the memory allocated to store the per-channel state to grow without any limits, potentially making the QUIC listener unavailable and causing Denial of Service.  CWE: CWE-770: Allocation of Resources Without Limits or Throttling  Description: The function that handles inbound QUIC packets uses Connection-Id from the packet header to find an existing connection (QUIC channel). If no existing connection is found and the packet type is INITIAL, the function treats the packet as a new connection. It allocates a new channel object and inserts it into a queue where it waits to be accepted by the local application with SSL_accept(3ossl). The memory occupied by these initial channel objects may grow without bounds if the application is not able to call SSL_accept() frequently enough to serve these inbound connection requests.  The issue is present since OpenSSL 3.5 when the QUIC server implementation was added.  The fix introduces a limit for pending connections. The default limit is set to 256 pending connections (waiting to be accepted by the local application). Applications may change the default by calling SSL_set_value_uint(3ossl).  FIPS impact: no The FIPS module is not affected as the QUIC implementation is outside of the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-14456","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-14456","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-14456","date":"2026-10-27","epss":0.00729,"percentile":0.54027}],"urls":["https://github.com/openssl/openssl/commit/08e7756c3900bcfd77a720e7b74e27d6e4ed01a9","https://github.com/openssl/openssl/commit/4084152e040329ca0194c4c1750b9b46d00a5b6b","https://github.com/openssl/openssl/commit/f2f1465f2d2e5c61dfeac4d20fd093797d821139","https://openssl-library.org/news/secadv/20260813.txt","http://www.openwall.com/lists/oss-security/2026/08/13/4"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-14456","description":"Issue summary: When an OpenSSL QUIC server (Listener SSL object) processes\nvalid QUIC Initial packets for unknown destination connection IDs, it\ncan allocate and queue new incoming channels without enforcing any limit.\n\nImpact summary: A remote peer that can make many Initial packets reach the\nserver listener faster than the application accepts connections, can cause the\nmemory allocated to store the per-channel state to grow without any limits,\npotentially making the QUIC listener unavailable and causing Denial of Service.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: The function that handles inbound QUIC packets uses\nConnection-Id from the packet header to find an existing connection\n(QUIC channel). If no existing connection is found and the packet\ntype is INITIAL, the function treats the packet as a new connection. It\nallocates a new channel object and inserts it into a queue where it\nwaits to be accepted by the local application with SSL_accept(3ossl).\nThe memory occupied by these initial channel objects may grow\nwithout bounds if the application is not able to call SSL_accept()\nfrequently enough to serve these inbound connection requests.\n\nThe issue is present since OpenSSL 3.5 when the QUIC server implementation\nwas added.\n\nThe fix introduces a limit for pending connections. The default limit is set\nto 256 pending connections (waiting to be accepted by the local application).\nApplications may change the default by calling SSL_set_value_uint(3ossl).\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-9076","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-9076","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-9076","cwe":"CWE-125","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-9076","date":"2026-10-27","epss":0.00707,"percentile":0.53221}],"risk":0.53025,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-9076","description":"Issue summary: When CMS password-based decryption (RFC 3211 / PWRI key unwrap) processes attacker-supplied CMS data, an attacker-chosen stream-mode KEK cipher can trigger a heap out-of-bounds read in kek_unwrap_key().  Impact summary: A heap buffer over-read may trigger a crash which leads to Denial of Service for an application if the input buffer ends at a memory page boundary and the following page is unmapped. There is no information disclosure as the over-read bytes are not revealed to the attacker.  The key unwrapping function performs a check-byte test as specified in the RFC that reads 7 bytes from a heap allocation that is based on the wrapped key length from the message. There is a minimum length check based on the block length of the wrapping cipher. However the cipher is selected from an OID carried in the attacker's PWRI keyEncryptionAlgorithm with no requirement that the cipher be a block cipher. When an attacker selects a stream-mode cipher the guard will be ineffective and the allocated buffer containing the unwrapped key can be too small to fit the check-bytes specified in the RFC and a buffer over-read can happen.  Applications calling CMS_decrypt() or CMS_decrypt_set1_password() (equivalently openssl cms -decrypt -pwri_password ...) on untrusted CMS data are vulnerable to this issue. No password knowledge is required: the over-read happens during the unwrap attempt before any authentication succeeds.  The over-read is limited to a few bytes and is not written to output, so there is no information disclosure. Triggering a crash requires the allocation to border unmapped memory, which is unlikely with the normal allocator.  The FIPS modules are not affected by this issue."},"relatedVulnerabilities":[{"id":"CVE-2026-9076","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-9076","cwe":"CWE-125","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-9076","date":"2026-10-27","epss":0.00707,"percentile":0.53221}],"urls":["https://github.com/openssl/openssl/commit/05b066366842f930fadd9a6e94df98030af431bb","https://github.com/openssl/openssl/commit/3d8d5bc1056b2f62da9fede23fedbf47e85187b0","https://github.com/openssl/openssl/commit/715349a1d7c6db970e6815dafb90915f07307f98","https://github.com/openssl/openssl/commit/77bf00ab13f6ff5e516535432f0328ed70ec0c26","https://github.com/openssl/openssl/commit/eecbe330977e8d023aae1ca2d9bdbe983ef3fdc6","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-9076","description":"Issue summary: When CMS password-based decryption (RFC 3211 / PWRI key unwrap)\nprocesses attacker-supplied CMS data, an attacker-chosen stream-mode KEK\ncipher can trigger a heap out-of-bounds read in kek_unwrap_key().\n\nImpact summary: A heap buffer over-read may trigger a crash which leads to\nDenial of Service for an application if the input buffer ends at a memory\npage boundary and the following page is unmapped. There is no information\ndisclosure as the over-read bytes are not revealed to the attacker.\n\nThe key unwrapping function performs a check-byte test as specified in the\nRFC that reads 7 bytes from a heap allocation that is based on the wrapped\nkey length from the message. There is a minimum length check based on the\nblock length of the wrapping cipher. However the cipher is selected from\nan OID carried in the attacker's PWRI keyEncryptionAlgorithm with no\nrequirement that the cipher be a block cipher. When an attacker selects\na stream-mode cipher the guard will be ineffective and the allocated buffer\ncontaining the unwrapped key can be too small to fit the check-bytes\nspecified in the RFC and a buffer over-read can happen.\n\nApplications calling CMS_decrypt() or CMS_decrypt_set1_password()\n(equivalently openssl cms -decrypt -pwri_password ...) on untrusted CMS\ndata are vulnerable to this issue. No password knowledge is required: the\nover-read happens during the unwrap attempt before any authentication\nsucceeds.\n\nThe over-read is limited to a few bytes and is not written to output, so\nthere is no information disclosure. Triggering a crash requires the\nallocation to border unmapped memory, which is unlikely with the normal\nallocator.\n\nThe FIPS modules are not affected by this issue."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-9076","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-9076","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-9076","cwe":"CWE-125","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-9076","date":"2026-10-27","epss":0.00707,"percentile":0.53221}],"risk":0.53025,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-9076","description":"Issue summary: When CMS password-based decryption (RFC 3211 / PWRI key unwrap) processes attacker-supplied CMS data, an attacker-chosen stream-mode KEK cipher can trigger a heap out-of-bounds read in kek_unwrap_key().  Impact summary: A heap buffer over-read may trigger a crash which leads to Denial of Service for an application if the input buffer ends at a memory page boundary and the following page is unmapped. There is no information disclosure as the over-read bytes are not revealed to the attacker.  The key unwrapping function performs a check-byte test as specified in the RFC that reads 7 bytes from a heap allocation that is based on the wrapped key length from the message. There is a minimum length check based on the block length of the wrapping cipher. However the cipher is selected from an OID carried in the attacker's PWRI keyEncryptionAlgorithm with no requirement that the cipher be a block cipher. When an attacker selects a stream-mode cipher the guard will be ineffective and the allocated buffer containing the unwrapped key can be too small to fit the check-bytes specified in the RFC and a buffer over-read can happen.  Applications calling CMS_decrypt() or CMS_decrypt_set1_password() (equivalently openssl cms -decrypt -pwri_password ...) on untrusted CMS data are vulnerable to this issue. No password knowledge is required: the over-read happens during the unwrap attempt before any authentication succeeds.  The over-read is limited to a few bytes and is not written to output, so there is no information disclosure. Triggering a crash requires the allocation to border unmapped memory, which is unlikely with the normal allocator.  The FIPS modules are not affected by this issue."},"relatedVulnerabilities":[{"id":"CVE-2026-9076","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-9076","cwe":"CWE-125","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-9076","date":"2026-10-27","epss":0.00707,"percentile":0.53221}],"urls":["https://github.com/openssl/openssl/commit/05b066366842f930fadd9a6e94df98030af431bb","https://github.com/openssl/openssl/commit/3d8d5bc1056b2f62da9fede23fedbf47e85187b0","https://github.com/openssl/openssl/commit/715349a1d7c6db970e6815dafb90915f07307f98","https://github.com/openssl/openssl/commit/77bf00ab13f6ff5e516535432f0328ed70ec0c26","https://github.com/openssl/openssl/commit/eecbe330977e8d023aae1ca2d9bdbe983ef3fdc6","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-9076","description":"Issue summary: When CMS password-based decryption (RFC 3211 / PWRI key unwrap)\nprocesses attacker-supplied CMS data, an attacker-chosen stream-mode KEK\ncipher can trigger a heap out-of-bounds read in kek_unwrap_key().\n\nImpact summary: A heap buffer over-read may trigger a crash which leads to\nDenial of Service for an application if the input buffer ends at a memory\npage boundary and the following page is unmapped. There is no information\ndisclosure as the over-read bytes are not revealed to the attacker.\n\nThe key unwrapping function performs a check-byte test as specified in the\nRFC that reads 7 bytes from a heap allocation that is based on the wrapped\nkey length from the message. There is a minimum length check based on the\nblock length of the wrapping cipher. However the cipher is selected from\nan OID carried in the attacker's PWRI keyEncryptionAlgorithm with no\nrequirement that the cipher be a block cipher. When an attacker selects\na stream-mode cipher the guard will be ineffective and the allocated buffer\ncontaining the unwrapped key can be too small to fit the check-bytes\nspecified in the RFC and a buffer over-read can happen.\n\nApplications calling CMS_decrypt() or CMS_decrypt_set1_password()\n(equivalently openssl cms -decrypt -pwri_password ...) on untrusted CMS\ndata are vulnerable to this issue. No password knowledge is required: the\nover-read happens during the unwrap attempt before any authentication\nsucceeds.\n\nThe over-read is limited to a few bytes and is not written to output, so\nthere is no information disclosure. Triggering a crash requires the\nallocation to border unmapped memory, which is unlikely with the normal\nallocator.\n\nThe FIPS modules are not affected by this issue."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-9076","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-9076","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-9076","cwe":"CWE-125","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-9076","date":"2026-10-27","epss":0.00707,"percentile":0.53221}],"risk":0.53025,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-9076","description":"Issue summary: When CMS password-based decryption (RFC 3211 / PWRI key unwrap) processes attacker-supplied CMS data, an attacker-chosen stream-mode KEK cipher can trigger a heap out-of-bounds read in kek_unwrap_key().  Impact summary: A heap buffer over-read may trigger a crash which leads to Denial of Service for an application if the input buffer ends at a memory page boundary and the following page is unmapped. There is no information disclosure as the over-read bytes are not revealed to the attacker.  The key unwrapping function performs a check-byte test as specified in the RFC that reads 7 bytes from a heap allocation that is based on the wrapped key length from the message. There is a minimum length check based on the block length of the wrapping cipher. However the cipher is selected from an OID carried in the attacker's PWRI keyEncryptionAlgorithm with no requirement that the cipher be a block cipher. When an attacker selects a stream-mode cipher the guard will be ineffective and the allocated buffer containing the unwrapped key can be too small to fit the check-bytes specified in the RFC and a buffer over-read can happen.  Applications calling CMS_decrypt() or CMS_decrypt_set1_password() (equivalently openssl cms -decrypt -pwri_password ...) on untrusted CMS data are vulnerable to this issue. No password knowledge is required: the over-read happens during the unwrap attempt before any authentication succeeds.  The over-read is limited to a few bytes and is not written to output, so there is no information disclosure. Triggering a crash requires the allocation to border unmapped memory, which is unlikely with the normal allocator.  The FIPS modules are not affected by this issue."},"relatedVulnerabilities":[{"id":"CVE-2026-9076","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-9076","cwe":"CWE-125","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-9076","date":"2026-10-27","epss":0.00707,"percentile":0.53221}],"urls":["https://github.com/openssl/openssl/commit/05b066366842f930fadd9a6e94df98030af431bb","https://github.com/openssl/openssl/commit/3d8d5bc1056b2f62da9fede23fedbf47e85187b0","https://github.com/openssl/openssl/commit/715349a1d7c6db970e6815dafb90915f07307f98","https://github.com/openssl/openssl/commit/77bf00ab13f6ff5e516535432f0328ed70ec0c26","https://github.com/openssl/openssl/commit/eecbe330977e8d023aae1ca2d9bdbe983ef3fdc6","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-9076","description":"Issue summary: When CMS password-based decryption (RFC 3211 / PWRI key unwrap)\nprocesses attacker-supplied CMS data, an attacker-chosen stream-mode KEK\ncipher can trigger a heap out-of-bounds read in kek_unwrap_key().\n\nImpact summary: A heap buffer over-read may trigger a crash which leads to\nDenial of Service for an application if the input buffer ends at a memory\npage boundary and the following page is unmapped. There is no information\ndisclosure as the over-read bytes are not revealed to the attacker.\n\nThe key unwrapping function performs a check-byte test as specified in the\nRFC that reads 7 bytes from a heap allocation that is based on the wrapped\nkey length from the message. There is a minimum length check based on the\nblock length of the wrapping cipher. However the cipher is selected from\nan OID carried in the attacker's PWRI keyEncryptionAlgorithm with no\nrequirement that the cipher be a block cipher. When an attacker selects\na stream-mode cipher the guard will be ineffective and the allocated buffer\ncontaining the unwrapped key can be too small to fit the check-bytes\nspecified in the RFC and a buffer over-read can happen.\n\nApplications calling CMS_decrypt() or CMS_decrypt_set1_password()\n(equivalently openssl cms -decrypt -pwri_password ...) on untrusted CMS\ndata are vulnerable to this issue. No password knowledge is required: the\nover-read happens during the unwrap attempt before any authentication\nsucceeds.\n\nThe over-read is limited to a few bytes and is not written to output, so\nthere is no information disclosure. Triggering a crash requires the\nallocation to border unmapped memory, which is unlikely with the normal\nallocator.\n\nThe FIPS modules are not affected by this issue."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-9076","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-9076","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-9076","cwe":"CWE-125","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-9076","date":"2026-10-27","epss":0.00707,"percentile":0.53221}],"risk":0.53025,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-9076","description":"Issue summary: When CMS password-based decryption (RFC 3211 / PWRI key unwrap) processes attacker-supplied CMS data, an attacker-chosen stream-mode KEK cipher can trigger a heap out-of-bounds read in kek_unwrap_key().  Impact summary: A heap buffer over-read may trigger a crash which leads to Denial of Service for an application if the input buffer ends at a memory page boundary and the following page is unmapped. There is no information disclosure as the over-read bytes are not revealed to the attacker.  The key unwrapping function performs a check-byte test as specified in the RFC that reads 7 bytes from a heap allocation that is based on the wrapped key length from the message. There is a minimum length check based on the block length of the wrapping cipher. However the cipher is selected from an OID carried in the attacker's PWRI keyEncryptionAlgorithm with no requirement that the cipher be a block cipher. When an attacker selects a stream-mode cipher the guard will be ineffective and the allocated buffer containing the unwrapped key can be too small to fit the check-bytes specified in the RFC and a buffer over-read can happen.  Applications calling CMS_decrypt() or CMS_decrypt_set1_password() (equivalently openssl cms -decrypt -pwri_password ...) on untrusted CMS data are vulnerable to this issue. No password knowledge is required: the over-read happens during the unwrap attempt before any authentication succeeds.  The over-read is limited to a few bytes and is not written to output, so there is no information disclosure. Triggering a crash requires the allocation to border unmapped memory, which is unlikely with the normal allocator.  The FIPS modules are not affected by this issue."},"relatedVulnerabilities":[{"id":"CVE-2026-9076","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-9076","cwe":"CWE-125","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-9076","date":"2026-10-27","epss":0.00707,"percentile":0.53221}],"urls":["https://github.com/openssl/openssl/commit/05b066366842f930fadd9a6e94df98030af431bb","https://github.com/openssl/openssl/commit/3d8d5bc1056b2f62da9fede23fedbf47e85187b0","https://github.com/openssl/openssl/commit/715349a1d7c6db970e6815dafb90915f07307f98","https://github.com/openssl/openssl/commit/77bf00ab13f6ff5e516535432f0328ed70ec0c26","https://github.com/openssl/openssl/commit/eecbe330977e8d023aae1ca2d9bdbe983ef3fdc6","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-9076","description":"Issue summary: When CMS password-based decryption (RFC 3211 / PWRI key unwrap)\nprocesses attacker-supplied CMS data, an attacker-chosen stream-mode KEK\ncipher can trigger a heap out-of-bounds read in kek_unwrap_key().\n\nImpact summary: A heap buffer over-read may trigger a crash which leads to\nDenial of Service for an application if the input buffer ends at a memory\npage boundary and the following page is unmapped. There is no information\ndisclosure as the over-read bytes are not revealed to the attacker.\n\nThe key unwrapping function performs a check-byte test as specified in the\nRFC that reads 7 bytes from a heap allocation that is based on the wrapped\nkey length from the message. There is a minimum length check based on the\nblock length of the wrapping cipher. However the cipher is selected from\nan OID carried in the attacker's PWRI keyEncryptionAlgorithm with no\nrequirement that the cipher be a block cipher. When an attacker selects\na stream-mode cipher the guard will be ineffective and the allocated buffer\ncontaining the unwrapped key can be too small to fit the check-bytes\nspecified in the RFC and a buffer over-read can happen.\n\nApplications calling CMS_decrypt() or CMS_decrypt_set1_password()\n(equivalently openssl cms -decrypt -pwri_password ...) on untrusted CMS\ndata are vulnerable to this issue. No password knowledge is required: the\nover-read happens during the unwrap attempt before any authentication\nsucceeds.\n\nThe over-read is limited to a few bytes and is not written to output, so\nthere is no information disclosure. Triggering a crash requires the\nallocation to border unmapped memory, which is unlikely with the normal\nallocator.\n\nThe FIPS modules are not affected by this issue."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-45445","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-45445","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-45445","cwe":"CWE-325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-45445","date":"2026-10-27","epss":0.00704,"percentile":0.53121}],"risk":0.528,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-45445","description":"Issue summary: When an application drives an AES-OCB context through the public EVP_Cipher() one-shot interface, the application-supplied initialisation vector (IV) is silently discarded.  Impact summary: Every message encrypted under the same key uses the same effective nonce regardless of the IV supplied by the caller, resulting in (key, nonce) reuse and loss of confidentiality.  If the same code path is used to compute the authentication tag, the tag depends only on the (key, IV) pair and not on the plaintext or ciphertext, allowing universal forgery of arbitrary ciphertext from a single captured message.  OpenSSL provides two ways to drive a cipher: the documented streaming interface (EVP_CipherUpdate / EVP_CipherFinal_ex) and a lower-level one-shot, EVP_Cipher(), whose documentation explicitly recommends against use by applications in favour of EVP_CipherUpdate() and EVP_CipherFinal_ex().  The OCB provider's streaming handler flushes the application-supplied IV into the OCB context before processing data; the one-shot handler did not.  Every call to EVP_Cipher() on an AES-OCB context therefore ran with the all-zero key-derived offset state left by cipher initialisation, regardless of the caller's IV.  If EVP_EncryptFinal_ex() is subsequently used to obtain the authentication tag, the deferred IV setup runs at that point and clears the running checksum that should have been accumulated over the plaintext.  The resulting tag is a function of (key, IV) only and verifies against any ciphertext produced under the same (key, IV) pair.  The OpenSSL SSL/TLS implementation is not affected: AES-OCB is not a TLS cipher suite, and libssl does not call EVP_Cipher() in any case. Applications that drive AES-OCB through the documented streaming AEAD API (EVP_CipherUpdate / EVP_CipherFinal_ex) are not affected.  Only applications that combine the AES-OCB cipher with the EVP_Cipher() one-shot API are vulnerable.  The FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by this issue, as AES-OCB is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-45445","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-45445","cwe":"CWE-325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-45445","date":"2026-10-27","epss":0.00704,"percentile":0.53121}],"urls":["https://github.com/openssl/openssl/commit/323f0b6e7d530a4cb4336d50c88cb70f3ac2a451","https://github.com/openssl/openssl/commit/787a6dfba81b7b09c1e05ab31396c0cd7c36b3f7","https://github.com/openssl/openssl/commit/7ac4715234ee72d9f3c93426a2c08554b5b771af","https://github.com/openssl/openssl/commit/843c9b94ca9c2ed248bb30127bb4f3d7af0d607c","https://github.com/openssl/openssl/commit/983d54b5cce8d16147548ed1a37892d1720bbab6","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-45445","description":"Issue summary: When an application drives an AES-OCB context through the\npublic EVP_Cipher() one-shot interface, the application-supplied\ninitialisation vector (IV) is silently discarded.\n\nImpact summary: Every message encrypted under the same key uses the\nsame effective nonce regardless of the IV supplied by the caller,\nresulting in (key, nonce) reuse and loss of confidentiality.  If the\nsame code path is used to compute the authentication tag, the tag\ndepends only on the (key, IV) pair and not on the plaintext or\nciphertext, allowing universal forgery of arbitrary ciphertext from a\nsingle captured message.\n\nOpenSSL provides two ways to drive a cipher: the documented streaming\ninterface (EVP_CipherUpdate / EVP_CipherFinal_ex) and a lower-level\none-shot, EVP_Cipher(), whose documentation explicitly recommends\nagainst use by applications in favour of EVP_CipherUpdate() and\nEVP_CipherFinal_ex().  The OCB provider's streaming handler flushes\nthe application-supplied IV into the OCB context before processing\ndata; the one-shot handler did not.  Every call to EVP_Cipher() on an\nAES-OCB context therefore ran with the all-zero key-derived offset\nstate left by cipher initialisation, regardless of the caller's IV.\n\nIf EVP_EncryptFinal_ex() is subsequently used to obtain the\nauthentication tag, the deferred IV setup runs at that point and\nclears the running checksum that should have been accumulated over the\nplaintext.  The resulting tag is a function of (key, IV) only and\nverifies against any ciphertext produced under the same (key, IV)\npair.\n\nThe OpenSSL SSL/TLS implementation is not affected: AES-OCB is not a\nTLS cipher suite, and libssl does not call EVP_Cipher() in any case.\nApplications that drive AES-OCB through the documented streaming AEAD\nAPI (EVP_CipherUpdate / EVP_CipherFinal_ex) are not affected.  Only\napplications that combine the AES-OCB cipher with the EVP_Cipher()\none-shot API are vulnerable.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by\nthis issue, as AES-OCB is outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-45445","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-45445","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-45445","cwe":"CWE-325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-45445","date":"2026-10-27","epss":0.00704,"percentile":0.53121}],"risk":0.528,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-45445","description":"Issue summary: When an application drives an AES-OCB context through the public EVP_Cipher() one-shot interface, the application-supplied initialisation vector (IV) is silently discarded.  Impact summary: Every message encrypted under the same key uses the same effective nonce regardless of the IV supplied by the caller, resulting in (key, nonce) reuse and loss of confidentiality.  If the same code path is used to compute the authentication tag, the tag depends only on the (key, IV) pair and not on the plaintext or ciphertext, allowing universal forgery of arbitrary ciphertext from a single captured message.  OpenSSL provides two ways to drive a cipher: the documented streaming interface (EVP_CipherUpdate / EVP_CipherFinal_ex) and a lower-level one-shot, EVP_Cipher(), whose documentation explicitly recommends against use by applications in favour of EVP_CipherUpdate() and EVP_CipherFinal_ex().  The OCB provider's streaming handler flushes the application-supplied IV into the OCB context before processing data; the one-shot handler did not.  Every call to EVP_Cipher() on an AES-OCB context therefore ran with the all-zero key-derived offset state left by cipher initialisation, regardless of the caller's IV.  If EVP_EncryptFinal_ex() is subsequently used to obtain the authentication tag, the deferred IV setup runs at that point and clears the running checksum that should have been accumulated over the plaintext.  The resulting tag is a function of (key, IV) only and verifies against any ciphertext produced under the same (key, IV) pair.  The OpenSSL SSL/TLS implementation is not affected: AES-OCB is not a TLS cipher suite, and libssl does not call EVP_Cipher() in any case. Applications that drive AES-OCB through the documented streaming AEAD API (EVP_CipherUpdate / EVP_CipherFinal_ex) are not affected.  Only applications that combine the AES-OCB cipher with the EVP_Cipher() one-shot API are vulnerable.  The FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by this issue, as AES-OCB is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-45445","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-45445","cwe":"CWE-325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-45445","date":"2026-10-27","epss":0.00704,"percentile":0.53121}],"urls":["https://github.com/openssl/openssl/commit/323f0b6e7d530a4cb4336d50c88cb70f3ac2a451","https://github.com/openssl/openssl/commit/787a6dfba81b7b09c1e05ab31396c0cd7c36b3f7","https://github.com/openssl/openssl/commit/7ac4715234ee72d9f3c93426a2c08554b5b771af","https://github.com/openssl/openssl/commit/843c9b94ca9c2ed248bb30127bb4f3d7af0d607c","https://github.com/openssl/openssl/commit/983d54b5cce8d16147548ed1a37892d1720bbab6","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-45445","description":"Issue summary: When an application drives an AES-OCB context through the\npublic EVP_Cipher() one-shot interface, the application-supplied\ninitialisation vector (IV) is silently discarded.\n\nImpact summary: Every message encrypted under the same key uses the\nsame effective nonce regardless of the IV supplied by the caller,\nresulting in (key, nonce) reuse and loss of confidentiality.  If the\nsame code path is used to compute the authentication tag, the tag\ndepends only on the (key, IV) pair and not on the plaintext or\nciphertext, allowing universal forgery of arbitrary ciphertext from a\nsingle captured message.\n\nOpenSSL provides two ways to drive a cipher: the documented streaming\ninterface (EVP_CipherUpdate / EVP_CipherFinal_ex) and a lower-level\none-shot, EVP_Cipher(), whose documentation explicitly recommends\nagainst use by applications in favour of EVP_CipherUpdate() and\nEVP_CipherFinal_ex().  The OCB provider's streaming handler flushes\nthe application-supplied IV into the OCB context before processing\ndata; the one-shot handler did not.  Every call to EVP_Cipher() on an\nAES-OCB context therefore ran with the all-zero key-derived offset\nstate left by cipher initialisation, regardless of the caller's IV.\n\nIf EVP_EncryptFinal_ex() is subsequently used to obtain the\nauthentication tag, the deferred IV setup runs at that point and\nclears the running checksum that should have been accumulated over the\nplaintext.  The resulting tag is a function of (key, IV) only and\nverifies against any ciphertext produced under the same (key, IV)\npair.\n\nThe OpenSSL SSL/TLS implementation is not affected: AES-OCB is not a\nTLS cipher suite, and libssl does not call EVP_Cipher() in any case.\nApplications that drive AES-OCB through the documented streaming AEAD\nAPI (EVP_CipherUpdate / EVP_CipherFinal_ex) are not affected.  Only\napplications that combine the AES-OCB cipher with the EVP_Cipher()\none-shot API are vulnerable.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by\nthis issue, as AES-OCB is outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-45445","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-45445","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-45445","cwe":"CWE-325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-45445","date":"2026-10-27","epss":0.00704,"percentile":0.53121}],"risk":0.528,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-45445","description":"Issue summary: When an application drives an AES-OCB context through the public EVP_Cipher() one-shot interface, the application-supplied initialisation vector (IV) is silently discarded.  Impact summary: Every message encrypted under the same key uses the same effective nonce regardless of the IV supplied by the caller, resulting in (key, nonce) reuse and loss of confidentiality.  If the same code path is used to compute the authentication tag, the tag depends only on the (key, IV) pair and not on the plaintext or ciphertext, allowing universal forgery of arbitrary ciphertext from a single captured message.  OpenSSL provides two ways to drive a cipher: the documented streaming interface (EVP_CipherUpdate / EVP_CipherFinal_ex) and a lower-level one-shot, EVP_Cipher(), whose documentation explicitly recommends against use by applications in favour of EVP_CipherUpdate() and EVP_CipherFinal_ex().  The OCB provider's streaming handler flushes the application-supplied IV into the OCB context before processing data; the one-shot handler did not.  Every call to EVP_Cipher() on an AES-OCB context therefore ran with the all-zero key-derived offset state left by cipher initialisation, regardless of the caller's IV.  If EVP_EncryptFinal_ex() is subsequently used to obtain the authentication tag, the deferred IV setup runs at that point and clears the running checksum that should have been accumulated over the plaintext.  The resulting tag is a function of (key, IV) only and verifies against any ciphertext produced under the same (key, IV) pair.  The OpenSSL SSL/TLS implementation is not affected: AES-OCB is not a TLS cipher suite, and libssl does not call EVP_Cipher() in any case. Applications that drive AES-OCB through the documented streaming AEAD API (EVP_CipherUpdate / EVP_CipherFinal_ex) are not affected.  Only applications that combine the AES-OCB cipher with the EVP_Cipher() one-shot API are vulnerable.  The FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by this issue, as AES-OCB is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-45445","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-45445","cwe":"CWE-325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-45445","date":"2026-10-27","epss":0.00704,"percentile":0.53121}],"urls":["https://github.com/openssl/openssl/commit/323f0b6e7d530a4cb4336d50c88cb70f3ac2a451","https://github.com/openssl/openssl/commit/787a6dfba81b7b09c1e05ab31396c0cd7c36b3f7","https://github.com/openssl/openssl/commit/7ac4715234ee72d9f3c93426a2c08554b5b771af","https://github.com/openssl/openssl/commit/843c9b94ca9c2ed248bb30127bb4f3d7af0d607c","https://github.com/openssl/openssl/commit/983d54b5cce8d16147548ed1a37892d1720bbab6","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-45445","description":"Issue summary: When an application drives an AES-OCB context through the\npublic EVP_Cipher() one-shot interface, the application-supplied\ninitialisation vector (IV) is silently discarded.\n\nImpact summary: Every message encrypted under the same key uses the\nsame effective nonce regardless of the IV supplied by the caller,\nresulting in (key, nonce) reuse and loss of confidentiality.  If the\nsame code path is used to compute the authentication tag, the tag\ndepends only on the (key, IV) pair and not on the plaintext or\nciphertext, allowing universal forgery of arbitrary ciphertext from a\nsingle captured message.\n\nOpenSSL provides two ways to drive a cipher: the documented streaming\ninterface (EVP_CipherUpdate / EVP_CipherFinal_ex) and a lower-level\none-shot, EVP_Cipher(), whose documentation explicitly recommends\nagainst use by applications in favour of EVP_CipherUpdate() and\nEVP_CipherFinal_ex().  The OCB provider's streaming handler flushes\nthe application-supplied IV into the OCB context before processing\ndata; the one-shot handler did not.  Every call to EVP_Cipher() on an\nAES-OCB context therefore ran with the all-zero key-derived offset\nstate left by cipher initialisation, regardless of the caller's IV.\n\nIf EVP_EncryptFinal_ex() is subsequently used to obtain the\nauthentication tag, the deferred IV setup runs at that point and\nclears the running checksum that should have been accumulated over the\nplaintext.  The resulting tag is a function of (key, IV) only and\nverifies against any ciphertext produced under the same (key, IV)\npair.\n\nThe OpenSSL SSL/TLS implementation is not affected: AES-OCB is not a\nTLS cipher suite, and libssl does not call EVP_Cipher() in any case.\nApplications that drive AES-OCB through the documented streaming AEAD\nAPI (EVP_CipherUpdate / EVP_CipherFinal_ex) are not affected.  Only\napplications that combine the AES-OCB cipher with the EVP_Cipher()\none-shot API are vulnerable.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by\nthis issue, as AES-OCB is outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-45445","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-45445","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-45445","cwe":"CWE-325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-45445","date":"2026-10-27","epss":0.00704,"percentile":0.53121}],"risk":0.528,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-45445","description":"Issue summary: When an application drives an AES-OCB context through the public EVP_Cipher() one-shot interface, the application-supplied initialisation vector (IV) is silently discarded.  Impact summary: Every message encrypted under the same key uses the same effective nonce regardless of the IV supplied by the caller, resulting in (key, nonce) reuse and loss of confidentiality.  If the same code path is used to compute the authentication tag, the tag depends only on the (key, IV) pair and not on the plaintext or ciphertext, allowing universal forgery of arbitrary ciphertext from a single captured message.  OpenSSL provides two ways to drive a cipher: the documented streaming interface (EVP_CipherUpdate / EVP_CipherFinal_ex) and a lower-level one-shot, EVP_Cipher(), whose documentation explicitly recommends against use by applications in favour of EVP_CipherUpdate() and EVP_CipherFinal_ex().  The OCB provider's streaming handler flushes the application-supplied IV into the OCB context before processing data; the one-shot handler did not.  Every call to EVP_Cipher() on an AES-OCB context therefore ran with the all-zero key-derived offset state left by cipher initialisation, regardless of the caller's IV.  If EVP_EncryptFinal_ex() is subsequently used to obtain the authentication tag, the deferred IV setup runs at that point and clears the running checksum that should have been accumulated over the plaintext.  The resulting tag is a function of (key, IV) only and verifies against any ciphertext produced under the same (key, IV) pair.  The OpenSSL SSL/TLS implementation is not affected: AES-OCB is not a TLS cipher suite, and libssl does not call EVP_Cipher() in any case. Applications that drive AES-OCB through the documented streaming AEAD API (EVP_CipherUpdate / EVP_CipherFinal_ex) are not affected.  Only applications that combine the AES-OCB cipher with the EVP_Cipher() one-shot API are vulnerable.  The FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by this issue, as AES-OCB is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-45445","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-45445","cwe":"CWE-325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-45445","date":"2026-10-27","epss":0.00704,"percentile":0.53121}],"urls":["https://github.com/openssl/openssl/commit/323f0b6e7d530a4cb4336d50c88cb70f3ac2a451","https://github.com/openssl/openssl/commit/787a6dfba81b7b09c1e05ab31396c0cd7c36b3f7","https://github.com/openssl/openssl/commit/7ac4715234ee72d9f3c93426a2c08554b5b771af","https://github.com/openssl/openssl/commit/843c9b94ca9c2ed248bb30127bb4f3d7af0d607c","https://github.com/openssl/openssl/commit/983d54b5cce8d16147548ed1a37892d1720bbab6","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-45445","description":"Issue summary: When an application drives an AES-OCB context through the\npublic EVP_Cipher() one-shot interface, the application-supplied\ninitialisation vector (IV) is silently discarded.\n\nImpact summary: Every message encrypted under the same key uses the\nsame effective nonce regardless of the IV supplied by the caller,\nresulting in (key, nonce) reuse and loss of confidentiality.  If the\nsame code path is used to compute the authentication tag, the tag\ndepends only on the (key, IV) pair and not on the plaintext or\nciphertext, allowing universal forgery of arbitrary ciphertext from a\nsingle captured message.\n\nOpenSSL provides two ways to drive a cipher: the documented streaming\ninterface (EVP_CipherUpdate / EVP_CipherFinal_ex) and a lower-level\none-shot, EVP_Cipher(), whose documentation explicitly recommends\nagainst use by applications in favour of EVP_CipherUpdate() and\nEVP_CipherFinal_ex().  The OCB provider's streaming handler flushes\nthe application-supplied IV into the OCB context before processing\ndata; the one-shot handler did not.  Every call to EVP_Cipher() on an\nAES-OCB context therefore ran with the all-zero key-derived offset\nstate left by cipher initialisation, regardless of the caller's IV.\n\nIf EVP_EncryptFinal_ex() is subsequently used to obtain the\nauthentication tag, the deferred IV setup runs at that point and\nclears the running checksum that should have been accumulated over the\nplaintext.  The resulting tag is a function of (key, IV) only and\nverifies against any ciphertext produced under the same (key, IV)\npair.\n\nThe OpenSSL SSL/TLS implementation is not affected: AES-OCB is not a\nTLS cipher suite, and libssl does not call EVP_Cipher() in any case.\nApplications that drive AES-OCB through the documented streaming AEAD\nAPI (EVP_CipherUpdate / EVP_CipherFinal_ex) are not affected.  Only\napplications that combine the AES-OCB cipher with the EVP_Cipher()\none-shot API are vulnerable.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4 and 3.0 are not affected by\nthis issue, as AES-OCB is outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-54873","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-54873","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54873","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54873","date":"2026-10-27","epss":0.00696,"percentile":0.52813}],"risk":0.522,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-54873","description":"Issue summary: QUIC process may keep memory for QUIC packet buffer for much longer period than necessary.  Impact summary: Remote peer can exploit this vulnerability by sending maliciously crafted packets, making the local QUIC stack to keep the memory for packet buffers allocated. The time for which the memory remains allocated is entirely under the control of the potentially malicious remote peer.  CWE: CWE-770: Allocation of Resources Without Limits or Throttling  Description: To save copy operation from the packet buffer to the stream reassemble buffer the QUIC stack leaves the stream data on the packet buffer waiting to be copied to a buffer provided by the local receiving application. The QUIC stack releases a reference to the packet buffer only after the data are copied to the application buffer. This design is more efficient for legitimate data transfers but enables an attacker to allocate a lot more memory than actually required by the data kept in the receiving stream buffer.  To mitigate the vulnerability, the QUIC stack now calculates and monitors memory overhead for every stream. The memory overhead for a single stream frame is calculated as a difference between the size of the whole packet that carries the stream frame and the size of the stream frame itself. The memory overhead for a single stream frame is added to the total (cumulative) memory overhead QUIC stack keeps for each stream. Once the cumulative memory overhead exceeds 64kB, the QUIC stack moves the stream frame data from the packet buffer to the stream buffer, starting with the next packet received.  FIPS impact: no The FIPS module is not affected as the QUIC implementation is outside of the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-54873","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54873","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54873","date":"2026-10-27","epss":0.00696,"percentile":0.52813}],"urls":["https://github.com/openssl/openssl/commit/1f643b8bc735487b500a1f68a7fb3a22d5e38e23","https://github.com/openssl/openssl/commit/279e7ee1392af98785746788168749491c74bd53","https://github.com/openssl/openssl/commit/3ea6213e050e938ecbbf8c4eff32bec2736780eb","https://github.com/openssl/openssl/commit/7127fb10888b49711c63128a09e524c0d2d5d0b2","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-54873","description":"Issue summary: QUIC process may keep memory for QUIC packet\nbuffer for much longer period than necessary.\n\nImpact summary: Remote peer can exploit this vulnerability\nby sending maliciously crafted packets, making the local\nQUIC stack to keep the memory for packet buffers allocated.\nThe time for which the memory remains allocated is entirely\nunder the control of the potentially malicious remote peer.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: To save copy operation from the packet buffer to the\nstream reassemble buffer the QUIC stack leaves the stream data\non the packet buffer waiting to be copied to a buffer provided\nby the local receiving application. The QUIC stack releases\na reference to the packet buffer only after the data are copied\nto the application buffer. This design is more efficient for\nlegitimate data transfers but enables an attacker to allocate a lot\nmore memory than actually required by the data kept in the receiving\nstream buffer.\n\nTo mitigate the vulnerability, the QUIC stack now calculates\nand monitors memory overhead for every stream. The memory overhead\nfor a single stream frame is calculated as a difference between the\nsize of the whole packet that carries the stream frame and the size\nof the stream frame itself. The memory overhead for a single stream\nframe is added to the total (cumulative) memory overhead QUIC stack\nkeeps for each stream. Once the cumulative memory overhead exceeds\n64kB, the QUIC stack moves the stream frame data from the packet\nbuffer to the stream buffer, starting with the next packet received.\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-54873","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-54873","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54873","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54873","date":"2026-10-27","epss":0.00696,"percentile":0.52813}],"risk":0.522,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-54873","description":"Issue summary: QUIC process may keep memory for QUIC packet buffer for much longer period than necessary.  Impact summary: Remote peer can exploit this vulnerability by sending maliciously crafted packets, making the local QUIC stack to keep the memory for packet buffers allocated. The time for which the memory remains allocated is entirely under the control of the potentially malicious remote peer.  CWE: CWE-770: Allocation of Resources Without Limits or Throttling  Description: To save copy operation from the packet buffer to the stream reassemble buffer the QUIC stack leaves the stream data on the packet buffer waiting to be copied to a buffer provided by the local receiving application. The QUIC stack releases a reference to the packet buffer only after the data are copied to the application buffer. This design is more efficient for legitimate data transfers but enables an attacker to allocate a lot more memory than actually required by the data kept in the receiving stream buffer.  To mitigate the vulnerability, the QUIC stack now calculates and monitors memory overhead for every stream. The memory overhead for a single stream frame is calculated as a difference between the size of the whole packet that carries the stream frame and the size of the stream frame itself. The memory overhead for a single stream frame is added to the total (cumulative) memory overhead QUIC stack keeps for each stream. Once the cumulative memory overhead exceeds 64kB, the QUIC stack moves the stream frame data from the packet buffer to the stream buffer, starting with the next packet received.  FIPS impact: no The FIPS module is not affected as the QUIC implementation is outside of the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-54873","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54873","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54873","date":"2026-10-27","epss":0.00696,"percentile":0.52813}],"urls":["https://github.com/openssl/openssl/commit/1f643b8bc735487b500a1f68a7fb3a22d5e38e23","https://github.com/openssl/openssl/commit/279e7ee1392af98785746788168749491c74bd53","https://github.com/openssl/openssl/commit/3ea6213e050e938ecbbf8c4eff32bec2736780eb","https://github.com/openssl/openssl/commit/7127fb10888b49711c63128a09e524c0d2d5d0b2","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-54873","description":"Issue summary: QUIC process may keep memory for QUIC packet\nbuffer for much longer period than necessary.\n\nImpact summary: Remote peer can exploit this vulnerability\nby sending maliciously crafted packets, making the local\nQUIC stack to keep the memory for packet buffers allocated.\nThe time for which the memory remains allocated is entirely\nunder the control of the potentially malicious remote peer.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: To save copy operation from the packet buffer to the\nstream reassemble buffer the QUIC stack leaves the stream data\non the packet buffer waiting to be copied to a buffer provided\nby the local receiving application. The QUIC stack releases\na reference to the packet buffer only after the data are copied\nto the application buffer. This design is more efficient for\nlegitimate data transfers but enables an attacker to allocate a lot\nmore memory than actually required by the data kept in the receiving\nstream buffer.\n\nTo mitigate the vulnerability, the QUIC stack now calculates\nand monitors memory overhead for every stream. The memory overhead\nfor a single stream frame is calculated as a difference between the\nsize of the whole packet that carries the stream frame and the size\nof the stream frame itself. The memory overhead for a single stream\nframe is added to the total (cumulative) memory overhead QUIC stack\nkeeps for each stream. Once the cumulative memory overhead exceeds\n64kB, the QUIC stack moves the stream frame data from the packet\nbuffer to the stream buffer, starting with the next packet received.\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-54873","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-54873","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54873","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54873","date":"2026-10-27","epss":0.00696,"percentile":0.52813}],"risk":0.522,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-54873","description":"Issue summary: QUIC process may keep memory for QUIC packet buffer for much longer period than necessary.  Impact summary: Remote peer can exploit this vulnerability by sending maliciously crafted packets, making the local QUIC stack to keep the memory for packet buffers allocated. The time for which the memory remains allocated is entirely under the control of the potentially malicious remote peer.  CWE: CWE-770: Allocation of Resources Without Limits or Throttling  Description: To save copy operation from the packet buffer to the stream reassemble buffer the QUIC stack leaves the stream data on the packet buffer waiting to be copied to a buffer provided by the local receiving application. The QUIC stack releases a reference to the packet buffer only after the data are copied to the application buffer. This design is more efficient for legitimate data transfers but enables an attacker to allocate a lot more memory than actually required by the data kept in the receiving stream buffer.  To mitigate the vulnerability, the QUIC stack now calculates and monitors memory overhead for every stream. The memory overhead for a single stream frame is calculated as a difference between the size of the whole packet that carries the stream frame and the size of the stream frame itself. The memory overhead for a single stream frame is added to the total (cumulative) memory overhead QUIC stack keeps for each stream. Once the cumulative memory overhead exceeds 64kB, the QUIC stack moves the stream frame data from the packet buffer to the stream buffer, starting with the next packet received.  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The QUIC stack releases\na reference to the packet buffer only after the data are copied\nto the application buffer. This design is more efficient for\nlegitimate data transfers but enables an attacker to allocate a lot\nmore memory than actually required by the data kept in the receiving\nstream buffer.\n\nTo mitigate the vulnerability, the QUIC stack now calculates\nand monitors memory overhead for every stream. The memory overhead\nfor a single stream frame is calculated as a difference between the\nsize of the whole packet that carries the stream frame and the size\nof the stream frame itself. The memory overhead for a single stream\nframe is added to the total (cumulative) memory overhead QUIC stack\nkeeps for each stream. 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The QUIC stack releases\na reference to the packet buffer only after the data are copied\nto the application buffer. This design is more efficient for\nlegitimate data transfers but enables an attacker to allocate a lot\nmore memory than actually required by the data kept in the receiving\nstream buffer.\n\nTo mitigate the vulnerability, the QUIC stack now calculates\nand monitors memory overhead for every stream. The memory overhead\nfor a single stream frame is calculated as a difference between the\nsize of the whole packet that carries the stream frame and the size\nof the stream frame itself. The memory overhead for a single stream\nframe is added to the total (cumulative) memory overhead QUIC stack\nkeeps for each stream. 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summary: Receiving a DTLS record for a future epoch while a handshake is in progress causes OpenSSL to buffer far more memory than the record itself requires.  Impact summary: A peer can use a small amount of network traffic to make an OpenSSL DTLS endpoint retain a disproportionately large amount of memory, which may lead to a Denial of Service.  CWE: CWE-405: Asymmetric Resource Consumption (Amplification)  Description: While a DTLS handshake is in progress, a peer may legitimately have already moved on to the next epoch (for example, having sent its ChangeCipherSpec and Finished messages) before the local endpoint has processed the same transition, typically because of reordering on the underlying UDP transport. OpenSSL buffers such early records so that they can be processed once the local endpoint catches up.  Buffering a record currently retains the entire read buffer it arrived in, which is sized to hold the largest possible DTLS record (around 16 kilobytes), rather than just the bytes that make up the record itself. Up to 100 such records may be buffered per connection. As a result, a peer that sends a stream of small forged records claiming to belong to the next epoch can cause an OpenSSL DTLS endpoint to retain around 1.7 megabytes of memory, despite sending only a small fraction of that amount of data over the network.  An attacker therefore gains a memory amplification factor of around 1200, and can multiply the effect across as many associations as it is able to open, making this a remote memory exhaustion Denial of Service risk for DTLS servers. Since the memory retained per connection remains bounded, and any limit an application already places on the number of concurrent associations also bounds the total exposure, this issue has been assessed as Low severity.  FIPS impact: no  No FIPS modules are affected by this issue as the affected code is outside the OpenSSL FIPS module boundary.  OpenSSL 4.0, 3.6, 3.5, 3.4, 3.0, 1.1.1 and 1.0.2 are vulnerable to this issue.  OpenSSL 4.0 users should upgrade to OpenSSL 4.0.2. OpenSSL 3.6 users should upgrade to OpenSSL 3.6.4. OpenSSL 3.5 users should upgrade to OpenSSL 3.5.8. OpenSSL 3.4 users should upgrade to OpenSSL 3.4.7. OpenSSL 3.0 users should upgrade to OpenSSL 3.0.22.  Premium support customers only: OpenSSL 1.1.1 users should upgrade to OpenSSL 1.1.1zi OpenSSL 1.0.2 users should upgrade to OpenSSL 1.0.2zr  This issue was reported on 18 May 2026 by Amazon Web Services. The fix has been developed by Matt Caswell.  -- cut (non-publishing metadata for internal use) -- Reported by: Amazon Web Services Fixed by: Matt Caswell"},"relatedVulnerabilities":[{"id":"CVE-2026-54874","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54874","cwe":"CWE-405","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54874","date":"2026-10-27","epss":0.00622,"percentile":0.49585}],"urls":["https://github.com/openssl/openssl/commit/4808b5d64176451f3d93d87d0ac9c81a9b13fb23","https://github.com/openssl/openssl/commit/7110cb2f75806d0bf809eb2f90790d477900be40","https://github.com/openssl/openssl/commit/a0c8ec557d9cac078f032d76cdf684fe743eb382","https://github.com/openssl/openssl/commit/cc0c6710917cd5eec001b297355d2ba723505107","https://github.com/openssl/openssl/commit/f52ffc11b90737ac89083909618dc2e1f42c561c","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-54874","description":"Issue summary: Receiving a DTLS record for a future epoch while a handshake\nis in progress causes OpenSSL to buffer far more memory than the record\nitself requires.\n\nImpact summary: A peer can use a small amount of network traffic to make an\nOpenSSL DTLS endpoint retain a disproportionately large amount of memory,\nwhich may lead to a Denial of Service.\n\nCWE: CWE-405: Asymmetric Resource Consumption (Amplification)\n\nDescription: While a DTLS handshake is in progress, a peer may legitimately\nhave already moved on to the next epoch (for example, having sent its\nChangeCipherSpec and Finished messages) before the local endpoint has\nprocessed the same transition, typically because of reordering on the\nunderlying UDP transport. OpenSSL buffers such early records so that they\ncan be processed once the local endpoint catches up.\n\nBuffering a record currently retains the entire read buffer it arrived in,\nwhich is sized to hold the largest possible DTLS record (around 16\nkilobytes), rather than just the bytes that make up the record itself. Up\nto 100 such records may be buffered per connection. As a result, a peer\nthat sends a stream of small forged records claiming to belong to the next\nepoch can cause an OpenSSL DTLS endpoint to retain around 1.7 megabytes of\nmemory, despite sending only a small fraction of that amount of data over\nthe network.\n\nAn attacker therefore gains a memory amplification factor of around 1200,\nand can multiply the effect across as many associations as it is able to\nopen, making this a remote memory exhaustion Denial of Service risk for\nDTLS servers. Since the memory retained per connection remains bounded,\nand any limit an application already places on the number of concurrent\nassociations also bounds the total exposure, this issue has been assessed\nas Low severity.\n\nFIPS impact: no\n\nNo FIPS modules are affected by this issue as the affected code is outside\nthe OpenSSL FIPS module boundary.\n\nOpenSSL 4.0, 3.6, 3.5, 3.4, 3.0, 1.1.1 and 1.0.2 are vulnerable to this\nissue.\n\nOpenSSL 4.0 users should upgrade to OpenSSL 4.0.2.\nOpenSSL 3.6 users should upgrade to OpenSSL 3.6.4.\nOpenSSL 3.5 users should upgrade to OpenSSL 3.5.8.\nOpenSSL 3.4 users should upgrade to OpenSSL 3.4.7.\nOpenSSL 3.0 users should upgrade to OpenSSL 3.0.22.\n\nPremium support customers only:\nOpenSSL 1.1.1 users should upgrade to OpenSSL 1.1.1zi\nOpenSSL 1.0.2 users should upgrade to OpenSSL 1.0.2zr\n\nThis issue was reported on 18 May 2026 by Amazon Web Services.\nThe fix has been developed by Matt Caswell.\n\n-- cut (non-publishing metadata for internal use) --\nReported by: Amazon Web Services\nFixed by: Matt Caswell"}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-54874","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-54874","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54874","cwe":"CWE-405","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54874","date":"2026-10-27","epss":0.00622,"percentile":0.49585}],"risk":0.46649999999999997,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-54874","description":"Issue summary: Receiving a DTLS record for a future epoch while a handshake is in progress causes OpenSSL to buffer far more memory than the record itself requires.  Impact summary: A peer can use a small amount of network traffic to make an OpenSSL DTLS endpoint retain a disproportionately large amount of memory, which may lead to a Denial of Service.  CWE: CWE-405: Asymmetric Resource Consumption (Amplification)  Description: While a DTLS handshake is in progress, a peer may legitimately have already moved on to the next epoch (for example, having sent its ChangeCipherSpec and Finished messages) before the local endpoint has processed the same transition, typically because of reordering on the underlying UDP transport. OpenSSL buffers such early records so that they can be processed once the local endpoint catches up.  Buffering a record currently retains the entire read buffer it arrived in, which is sized to hold the largest possible DTLS record (around 16 kilobytes), rather than just the bytes that make up the record itself. Up to 100 such records may be buffered per connection. As a result, a peer that sends a stream of small forged records claiming to belong to the next epoch can cause an OpenSSL DTLS endpoint to retain around 1.7 megabytes of memory, despite sending only a small fraction of that amount of data over the network.  An attacker therefore gains a memory amplification factor of around 1200, and can multiply the effect across as many associations as it is able to open, making this a remote memory exhaustion Denial of Service risk for DTLS servers. Since the memory retained per connection remains bounded, and any limit an application already places on the number of concurrent associations also bounds the total exposure, this issue has been assessed as Low severity.  FIPS impact: no  No FIPS modules are affected by this issue as the affected code is outside the OpenSSL FIPS module boundary.  OpenSSL 4.0, 3.6, 3.5, 3.4, 3.0, 1.1.1 and 1.0.2 are vulnerable to this issue.  OpenSSL 4.0 users should upgrade to OpenSSL 4.0.2. OpenSSL 3.6 users should upgrade to OpenSSL 3.6.4. OpenSSL 3.5 users should upgrade to OpenSSL 3.5.8. OpenSSL 3.4 users should upgrade to OpenSSL 3.4.7. OpenSSL 3.0 users should upgrade to OpenSSL 3.0.22.  Premium support customers only: OpenSSL 1.1.1 users should upgrade to OpenSSL 1.1.1zi OpenSSL 1.0.2 users should upgrade to OpenSSL 1.0.2zr  This issue was reported on 18 May 2026 by Amazon Web Services. The fix has been developed by Matt Caswell.  -- cut (non-publishing metadata for internal use) -- Reported by: Amazon Web Services Fixed by: Matt Caswell"},"relatedVulnerabilities":[{"id":"CVE-2026-54874","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54874","cwe":"CWE-405","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54874","date":"2026-10-27","epss":0.00622,"percentile":0.49585}],"urls":["https://github.com/openssl/openssl/commit/4808b5d64176451f3d93d87d0ac9c81a9b13fb23","https://github.com/openssl/openssl/commit/7110cb2f75806d0bf809eb2f90790d477900be40","https://github.com/openssl/openssl/commit/a0c8ec557d9cac078f032d76cdf684fe743eb382","https://github.com/openssl/openssl/commit/cc0c6710917cd5eec001b297355d2ba723505107","https://github.com/openssl/openssl/commit/f52ffc11b90737ac89083909618dc2e1f42c561c","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-54874","description":"Issue summary: Receiving a DTLS record for a future epoch while a handshake\nis in progress causes OpenSSL to buffer far more memory than the record\nitself requires.\n\nImpact summary: A peer can use a small amount of network traffic to make an\nOpenSSL DTLS endpoint retain a disproportionately large amount of memory,\nwhich may lead to a Denial of Service.\n\nCWE: CWE-405: Asymmetric Resource Consumption (Amplification)\n\nDescription: While a DTLS handshake is in progress, a peer may legitimately\nhave already moved on to the next epoch (for example, having sent its\nChangeCipherSpec and Finished messages) before the local endpoint has\nprocessed the same transition, typically because of reordering on the\nunderlying UDP transport. OpenSSL buffers such early records so that they\ncan be processed once the local endpoint catches up.\n\nBuffering a record currently retains the entire read buffer it arrived in,\nwhich is sized to hold the largest possible DTLS record (around 16\nkilobytes), rather than just the bytes that make up the record itself. Up\nto 100 such records may be buffered per connection. As a result, a peer\nthat sends a stream of small forged records claiming to belong to the next\nepoch can cause an OpenSSL DTLS endpoint to retain around 1.7 megabytes of\nmemory, despite sending only a small fraction of that amount of data over\nthe network.\n\nAn attacker therefore gains a memory amplification factor of around 1200,\nand can multiply the effect across as many associations as it is able to\nopen, making this a remote memory exhaustion Denial of Service risk for\nDTLS servers. Since the memory retained per connection remains bounded,\nand any limit an application already places on the number of concurrent\nassociations also bounds the total exposure, this issue has been assessed\nas Low severity.\n\nFIPS impact: no\n\nNo FIPS modules are affected by this issue as the affected code is outside\nthe OpenSSL FIPS module boundary.\n\nOpenSSL 4.0, 3.6, 3.5, 3.4, 3.0, 1.1.1 and 1.0.2 are vulnerable to this\nissue.\n\nOpenSSL 4.0 users should upgrade to OpenSSL 4.0.2.\nOpenSSL 3.6 users should upgrade to OpenSSL 3.6.4.\nOpenSSL 3.5 users should upgrade to OpenSSL 3.5.8.\nOpenSSL 3.4 users should upgrade to OpenSSL 3.4.7.\nOpenSSL 3.0 users should upgrade to OpenSSL 3.0.22.\n\nPremium support customers only:\nOpenSSL 1.1.1 users should upgrade to OpenSSL 1.1.1zi\nOpenSSL 1.0.2 users should upgrade to OpenSSL 1.0.2zr\n\nThis issue was reported on 18 May 2026 by Amazon Web Services.\nThe fix has been developed by Matt Caswell.\n\n-- cut (non-publishing metadata for internal use) --\nReported by: Amazon Web Services\nFixed by: Matt Caswell"}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-54874","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-54874","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54874","cwe":"CWE-405","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54874","date":"2026-10-27","epss":0.00622,"percentile":0.49585}],"risk":0.46649999999999997,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-54874","description":"Issue summary: Receiving a DTLS record for a future epoch while a handshake is in progress causes OpenSSL to buffer far more memory than the record itself requires.  Impact summary: A peer can use a small amount of network traffic to make an OpenSSL DTLS endpoint retain a disproportionately large amount of memory, which may lead to a Denial of Service.  CWE: CWE-405: Asymmetric Resource Consumption (Amplification)  Description: While a DTLS handshake is in progress, a peer may legitimately have already moved on to the next epoch (for example, having sent its ChangeCipherSpec and Finished messages) before the local endpoint has processed the same transition, typically because of reordering on the underlying UDP transport. OpenSSL buffers such early records so that they can be processed once the local endpoint catches up.  Buffering a record currently retains the entire read buffer it arrived in, which is sized to hold the largest possible DTLS record (around 16 kilobytes), rather than just the bytes that make up the record itself. Up to 100 such records may be buffered per connection. As a result, a peer that sends a stream of small forged records claiming to belong to the next epoch can cause an OpenSSL DTLS endpoint to retain around 1.7 megabytes of memory, despite sending only a small fraction of that amount of data over the network.  An attacker therefore gains a memory amplification factor of around 1200, and can multiply the effect across as many associations as it is able to open, making this a remote memory exhaustion Denial of Service risk for DTLS servers. Since the memory retained per connection remains bounded, and any limit an application already places on the number of concurrent associations also bounds the total exposure, this issue has been assessed as Low severity.  FIPS impact: no  No FIPS modules are affected by this issue as the affected code is outside the OpenSSL FIPS module boundary.  OpenSSL 4.0, 3.6, 3.5, 3.4, 3.0, 1.1.1 and 1.0.2 are vulnerable to this issue.  OpenSSL 4.0 users should upgrade to OpenSSL 4.0.2. OpenSSL 3.6 users should upgrade to OpenSSL 3.6.4. OpenSSL 3.5 users should upgrade to OpenSSL 3.5.8. OpenSSL 3.4 users should upgrade to OpenSSL 3.4.7. OpenSSL 3.0 users should upgrade to OpenSSL 3.0.22.  Premium support customers only: OpenSSL 1.1.1 users should upgrade to OpenSSL 1.1.1zi OpenSSL 1.0.2 users should upgrade to OpenSSL 1.0.2zr  This issue was reported on 18 May 2026 by Amazon Web Services. The fix has been developed by Matt Caswell.  -- cut (non-publishing metadata for internal use) -- Reported by: Amazon Web Services Fixed by: Matt Caswell"},"relatedVulnerabilities":[{"id":"CVE-2026-54874","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54874","cwe":"CWE-405","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54874","date":"2026-10-27","epss":0.00622,"percentile":0.49585}],"urls":["https://github.com/openssl/openssl/commit/4808b5d64176451f3d93d87d0ac9c81a9b13fb23","https://github.com/openssl/openssl/commit/7110cb2f75806d0bf809eb2f90790d477900be40","https://github.com/openssl/openssl/commit/a0c8ec557d9cac078f032d76cdf684fe743eb382","https://github.com/openssl/openssl/commit/cc0c6710917cd5eec001b297355d2ba723505107","https://github.com/openssl/openssl/commit/f52ffc11b90737ac89083909618dc2e1f42c561c","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-54874","description":"Issue summary: Receiving a DTLS record for a future epoch while a handshake\nis in progress causes OpenSSL to buffer far more memory than the record\nitself requires.\n\nImpact summary: A peer can use a small amount of network traffic to make an\nOpenSSL DTLS endpoint retain a disproportionately large amount of memory,\nwhich may lead to a Denial of Service.\n\nCWE: CWE-405: Asymmetric Resource Consumption (Amplification)\n\nDescription: While a DTLS handshake is in progress, a peer may legitimately\nhave already moved on to the next epoch (for example, having sent its\nChangeCipherSpec and Finished messages) before the local endpoint has\nprocessed the same transition, typically because of reordering on the\nunderlying UDP transport. OpenSSL buffers such early records so that they\ncan be processed once the local endpoint catches up.\n\nBuffering a record currently retains the entire read buffer it arrived in,\nwhich is sized to hold the largest possible DTLS record (around 16\nkilobytes), rather than just the bytes that make up the record itself. Up\nto 100 such records may be buffered per connection. As a result, a peer\nthat sends a stream of small forged records claiming to belong to the next\nepoch can cause an OpenSSL DTLS endpoint to retain around 1.7 megabytes of\nmemory, despite sending only a small fraction of that amount of data over\nthe network.\n\nAn attacker therefore gains a memory amplification factor of around 1200,\nand can multiply the effect across as many associations as it is able to\nopen, making this a remote memory exhaustion Denial of Service risk for\nDTLS servers. Since the memory retained per connection remains bounded,\nand any limit an application already places on the number of concurrent\nassociations also bounds the total exposure, this issue has been assessed\nas Low severity.\n\nFIPS impact: no\n\nNo FIPS modules are affected by this issue as the affected code is outside\nthe OpenSSL FIPS module boundary.\n\nOpenSSL 4.0, 3.6, 3.5, 3.4, 3.0, 1.1.1 and 1.0.2 are vulnerable to this\nissue.\n\nOpenSSL 4.0 users should upgrade to OpenSSL 4.0.2.\nOpenSSL 3.6 users should upgrade to OpenSSL 3.6.4.\nOpenSSL 3.5 users should upgrade to OpenSSL 3.5.8.\nOpenSSL 3.4 users should upgrade to OpenSSL 3.4.7.\nOpenSSL 3.0 users should upgrade to OpenSSL 3.0.22.\n\nPremium support customers only:\nOpenSSL 1.1.1 users should upgrade to OpenSSL 1.1.1zi\nOpenSSL 1.0.2 users should upgrade to OpenSSL 1.0.2zr\n\nThis issue was reported on 18 May 2026 by Amazon Web Services.\nThe fix has been developed by Matt Caswell.\n\n-- cut (non-publishing metadata for internal use) --\nReported by: Amazon Web Services\nFixed by: Matt Caswell"}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-54874","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-54874","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54874","cwe":"CWE-405","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54874","date":"2026-10-27","epss":0.00622,"percentile":0.49585}],"risk":0.46649999999999997,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-54874","description":"Issue summary: Receiving a DTLS record for a future epoch while a handshake is in progress causes OpenSSL to buffer far more memory than the record itself requires.  Impact summary: A peer can use a small amount of network traffic to make an OpenSSL DTLS endpoint retain a disproportionately large amount of memory, which may lead to a Denial of Service.  CWE: CWE-405: Asymmetric Resource Consumption (Amplification)  Description: While a DTLS handshake is in progress, a peer may legitimately have already moved on to the next epoch (for example, having sent its ChangeCipherSpec and Finished messages) before the local endpoint has processed the same transition, typically because of reordering on the underlying UDP transport. OpenSSL buffers such early records so that they can be processed once the local endpoint catches up.  Buffering a record currently retains the entire read buffer it arrived in, which is sized to hold the largest possible DTLS record (around 16 kilobytes), rather than just the bytes that make up the record itself. Up to 100 such records may be buffered per connection. As a result, a peer that sends a stream of small forged records claiming to belong to the next epoch can cause an OpenSSL DTLS endpoint to retain around 1.7 megabytes of memory, despite sending only a small fraction of that amount of data over the network.  An attacker therefore gains a memory amplification factor of around 1200, and can multiply the effect across as many associations as it is able to open, making this a remote memory exhaustion Denial of Service risk for DTLS servers. Since the memory retained per connection remains bounded, and any limit an application already places on the number of concurrent associations also bounds the total exposure, this issue has been assessed as Low severity.  FIPS impact: no  No FIPS modules are affected by this issue as the affected code is outside the OpenSSL FIPS module boundary.  OpenSSL 4.0, 3.6, 3.5, 3.4, 3.0, 1.1.1 and 1.0.2 are vulnerable to this issue.  OpenSSL 4.0 users should upgrade to OpenSSL 4.0.2. OpenSSL 3.6 users should upgrade to OpenSSL 3.6.4. OpenSSL 3.5 users should upgrade to OpenSSL 3.5.8. OpenSSL 3.4 users should upgrade to OpenSSL 3.4.7. OpenSSL 3.0 users should upgrade to OpenSSL 3.0.22.  Premium support customers only: OpenSSL 1.1.1 users should upgrade to OpenSSL 1.1.1zi OpenSSL 1.0.2 users should upgrade to OpenSSL 1.0.2zr  This issue was reported on 18 May 2026 by Amazon Web Services. The fix has been developed by Matt Caswell.  -- cut (non-publishing metadata for internal use) -- Reported by: Amazon Web Services Fixed by: Matt Caswell"},"relatedVulnerabilities":[{"id":"CVE-2026-54874","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54874","cwe":"CWE-405","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54874","date":"2026-10-27","epss":0.00622,"percentile":0.49585}],"urls":["https://github.com/openssl/openssl/commit/4808b5d64176451f3d93d87d0ac9c81a9b13fb23","https://github.com/openssl/openssl/commit/7110cb2f75806d0bf809eb2f90790d477900be40","https://github.com/openssl/openssl/commit/a0c8ec557d9cac078f032d76cdf684fe743eb382","https://github.com/openssl/openssl/commit/cc0c6710917cd5eec001b297355d2ba723505107","https://github.com/openssl/openssl/commit/f52ffc11b90737ac89083909618dc2e1f42c561c","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-54874","description":"Issue summary: Receiving a DTLS record for a future epoch while a handshake\nis in progress causes OpenSSL to buffer far more memory than the record\nitself requires.\n\nImpact summary: A peer can use a small amount of network traffic to make an\nOpenSSL DTLS endpoint retain a disproportionately large amount of memory,\nwhich may lead to a Denial of Service.\n\nCWE: CWE-405: Asymmetric Resource Consumption (Amplification)\n\nDescription: While a DTLS handshake is in progress, a peer may legitimately\nhave already moved on to the next epoch (for example, having sent its\nChangeCipherSpec and Finished messages) before the local endpoint has\nprocessed the same transition, typically because of reordering on the\nunderlying UDP transport. OpenSSL buffers such early records so that they\ncan be processed once the local endpoint catches up.\n\nBuffering a record currently retains the entire read buffer it arrived in,\nwhich is sized to hold the largest possible DTLS record (around 16\nkilobytes), rather than just the bytes that make up the record itself. Up\nto 100 such records may be buffered per connection. As a result, a peer\nthat sends a stream of small forged records claiming to belong to the next\nepoch can cause an OpenSSL DTLS endpoint to retain around 1.7 megabytes of\nmemory, despite sending only a small fraction of that amount of data over\nthe network.\n\nAn attacker therefore gains a memory amplification factor of around 1200,\nand can multiply the effect across as many associations as it is able to\nopen, making this a remote memory exhaustion Denial of Service risk for\nDTLS servers. Since the memory retained per connection remains bounded,\nand any limit an application already places on the number of concurrent\nassociations also bounds the total exposure, this issue has been assessed\nas Low severity.\n\nFIPS impact: no\n\nNo FIPS modules are affected by this issue as the affected code is outside\nthe OpenSSL FIPS module boundary.\n\nOpenSSL 4.0, 3.6, 3.5, 3.4, 3.0, 1.1.1 and 1.0.2 are vulnerable to this\nissue.\n\nOpenSSL 4.0 users should upgrade to OpenSSL 4.0.2.\nOpenSSL 3.6 users should upgrade to OpenSSL 3.6.4.\nOpenSSL 3.5 users should upgrade to OpenSSL 3.5.8.\nOpenSSL 3.4 users should upgrade to OpenSSL 3.4.7.\nOpenSSL 3.0 users should upgrade to OpenSSL 3.0.22.\n\nPremium support customers only:\nOpenSSL 1.1.1 users should upgrade to OpenSSL 1.1.1zi\nOpenSSL 1.0.2 users should upgrade to OpenSSL 1.0.2zr\n\nThis issue was reported on 18 May 2026 by Amazon Web Services.\nThe fix has been developed by Matt Caswell.\n\n-- cut (non-publishing metadata for internal use) --\nReported by: Amazon Web Services\nFixed by: Matt Caswell"}]},{"artifact":{"id":"b30644f429eabdac","cpes":["cpe:2.3:a:gzip:gzip:1.13-1:*:*:*:*:*:*:*"],"name":"gzip","purl":"pkg:deb/debian/gzip@1.13-1?arch=amd64&distro=debian-13.4","type":"deb","version":"1.13-1","language":"","licenses":["FSF-manpages","GFDL-1.3+-no-invariant","GFDL-3","GPL-3","GPL-3+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/gzip/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/gzip/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/gzip.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/gzip.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/gzip.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/gzip.list"},{"path":"/var/lib/dpkg/info/gzip.postinst","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/gzip.postinst"},{"path":"/var/lib/dpkg/info/gzip.preinst","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/gzip.preinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"1.13-1+deb13u1"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-41992","versionConstraint":"< 1.13-1+deb13u1 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"gzip","version":"1.13-1"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-41992","fix":{"state":"fixed","versions":["1.13-1+deb13u1"],"available":[{"date":"2026-09-13","kind":"first-observed","version":"1.13-1+deb13u1"}]},"cvss":[{"type":"Primary","source":"nvd@nist.gov","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-41992","cwe":"CWE-126","type":"Secondary","source":"cvd@cert.pl"}],"epss":[{"cve":"CVE-2026-41992","date":"2026-10-27","epss":0.0062,"percentile":0.49472}],"risk":0.46499999999999997,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-41992","description":"GNU gzip contains a global buffer overflow vulnerability in the LZH decompression logic caused by improper reuse of shared global state between different decompression formats within a single execution. GNU gzip maintains a global array that is shared across the LZ77, LZW, and LZH decompression routines and is not reinitialized between files processed in the same invocation. By decompressing a specially crafted LZW file followed by a specially crafted LZH file in a single gzip -d command, an attacker can poison the shared global state and subsequently trigger an out‑of‑bounds read in the LZH decoder. The LZH decompression logic follows stale values left in the shared array, causing reads past the end of the allocated global buffer.  This issue has been fixed in commits 63dbf6b3b9e6e781df1a6a64e609b10e23969681 and e7378c2d421be6a286922374425680bbe9ad8b7d."},"relatedVulnerabilities":[{"id":"CVE-2026-41992","cvss":[{"type":"Primary","source":"nvd@nist.gov","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}},{"type":"Secondary","source":"cvd@cert.pl","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","metrics":{"baseScore":6.9},"version":"4.0","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-41992","cwe":"CWE-126","type":"Secondary","source":"cvd@cert.pl"}],"epss":[{"cve":"CVE-2026-41992","date":"2026-10-27","epss":0.0062,"percentile":0.49472}],"urls":["https://cert.pl/en/posts/2026/04/CVE-2026-41991/","https://cgit.git.savannah.gnu.org/cgit/gzip.git/commit/?id=63dbf6b3b9e6e781df1a6a64e609b10e23969681","https://cgit.git.savannah.gnu.org/cgit/gzip.git/commit/?id=e7378c2d421be6a286922374425680bbe9ad8b7d","https://www.gnu.org/software/gzip/","http://www.openwall.com/lists/oss-security/2026/08/23/1","http://www.openwall.com/lists/oss-security/2026/08/25/1","http://www.openwall.com/lists/oss-security/2026/08/27/2"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-41992","description":"GNU gzip contains a global buffer overflow vulnerability in the LZH decompression logic caused by improper reuse of shared global state between different decompression formats within a single execution. GNU gzip maintains a global array that is shared across the LZ77, LZW, and LZH decompression routines and is not reinitialized between files processed in the same invocation.\nBy decompressing a specially crafted LZW file followed by a specially crafted LZH file in a single gzip -d command, an attacker can poison the shared global state and subsequently trigger an out‑of‑bounds read in the LZH decoder. The LZH decompression logic follows stale values left in the shared array, causing reads past the end of the allocated global buffer.\n\nThis issue has been fixed in commits 63dbf6b3b9e6e781df1a6a64e609b10e23969681 and e7378c2d421be6a286922374425680bbe9ad8b7d."}]},{"artifact":{"id":"c9a7a6c12ce9a73e","cpes":["cpe:2.3:a:perl-base:perl-base:5.40.1-6:*:*:*:*:*:*:*","cpe:2.3:a:perl-base:perl_base:5.40.1-6:*:*:*:*:*:*:*","cpe:2.3:a:perl_base:perl-base:5.40.1-6:*:*:*:*:*:*:*","cpe:2.3:a:perl_base:perl_base:5.40.1-6:*:*:*:*:*:*:*","cpe:2.3:a:perl:perl-base:5.40.1-6:*:*:*:*:*:*:*","cpe:2.3:a:perl:perl_base:5.40.1-6:*:*:*:*:*:*:*"],"name":"perl-base","purl":"pkg:deb/debian/perl-base@5.40.1-6?arch=amd64&distro=debian-13.4&upstream=perl","type":"deb","version":"5.40.1-6","language":"","licenses":["Artistic","Artistic-2","Artistic-dist","BSD-3-clause","BSD-3-clause-GENERIC","BSD-3-clause-with-weird-numbering","BSD-4-clause-POWERDOG","BZIP","DONT-CHANGE-THE-GPL","Expat","FSFAP","GPL-1","GPL-1+","GPL-2","GPL-2+","GPL-3+-WITH-BISON-EXCEPTION","LGPL-2.1","REGCOMP","REGCOMP,","SDBM-PUBLIC-DOMAIN","TEXT-TABS","Unicode","ZLIB"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/perl-base/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/perl-base/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/perl-base.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/perl-base.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/perl-base.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/perl-base.list"}],"upstreams":[{"name":"perl"}]},"matchDetails":[{"fix":{"suggestedVersion":"5.40.1-6+deb13u1"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-8376","versionConstraint":"< 5.40.1-6+deb13u1 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"perl","version":"5.40.1-6"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-8376","fix":{"state":"fixed","versions":["5.40.1-6+deb13u1"],"available":[{"date":"2026-09-13","kind":"first-observed","version":"5.40.1-6+deb13u1"}]},"cvss":[{"type":"Primary","source":"nvd@nist.gov","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":9.8,"impactScore":5.9,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-8376","cwe":"CWE-680","type":"Secondary","source":"9b29abf9-4ab0-4765-b253-1875cd9b441e"}],"epss":[{"cve":"CVE-2026-8376","date":"2026-10-27","epss":0.00486,"percentile":0.41683}],"risk":0.45684,"urls":[],"severity":"Critical","namespace":"debian:distro:debian:13","advisories":[],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-8376","description":"Perl versions before 5.40.5-RC1, from 5.41.0 before 5.42.3-RC1, from 5.43.0 before 5.43.11 have a heap buffer overflow when compiling regular expressions with a repeated fixed string on 32-bit builds.  Perl_study_chunk in regcomp_study.c checked the size of the joined substring buffer in characters rather than bytes. For a quantified fixed substring with a large minimum count, the byte length mincount * l could overflow SSize_t, producing an undersized SvGROW allocation; the subsequent copy writes past the end of the buffer.  A caller that compiles an attacker-controlled regular expression on a 32-bit perl build triggers a heap buffer overflow at compile time."},"relatedVulnerabilities":[{"id":"CVE-2026-8376","cvss":[{"type":"Primary","source":"nvd@nist.gov","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":9.8,"impactScore":5.9,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}},{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","metrics":{"baseScore":7.3,"impactScore":3.4,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-8376","cwe":"CWE-680","type":"Secondary","source":"9b29abf9-4ab0-4765-b253-1875cd9b441e"}],"epss":[{"cve":"CVE-2026-8376","date":"2026-10-27","epss":0.00486,"percentile":0.41683}],"urls":["https://github.com/Perl/perl5/commit/5e7f119eb2bb1181be908701f22bf7068e722f1c.patch","http://www.openwall.com/lists/oss-security/2026/05/26/1"],"severity":"Critical","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-8376","description":"Perl versions before 5.40.5-RC1, from 5.41.0 before 5.42.3-RC1, from 5.43.0 before 5.43.11 have a heap buffer overflow when compiling regular expressions with a repeated fixed string on 32-bit builds.\n\nPerl_study_chunk in regcomp_study.c checked the size of the joined substring buffer in characters rather than bytes. For a quantified fixed substring with a large minimum count, the byte length mincount * l could overflow SSize_t, producing an undersized SvGROW allocation; the subsequent copy writes past the end of the buffer.\n\nA caller that compiles an attacker-controlled regular expression on a 32-bit perl build triggers a heap buffer overflow at compile time."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-84784","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-84784","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-84784","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-84784","date":"2026-10-27","epss":0.00607,"percentile":0.48831}],"risk":0.45525,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-84784","description":"Issue summary: A malicious remote peer may flood the local QUIC stack with NEW_CONNECTION_ID frames by avoiding a limit check on how many connection IDs the remote QUIC stack can use.  Impact summary: The local QUIC stack sends a RETIRE_CONN_ID frame for every NEW_CONNECTION_ID frame it receives. The RETIRE_CONN_ID frame is dispatched via the Control Frame Queue (CFQ). If the remote peer also withholds ACKs, then it can force the local stack to allocate ~400MB (depending on ACK delay).  CWE: CWE-770: Allocation of Resources Without Limits or Throttling  Description: RFC 9000 sections 5.1.1 and 5.1.2 [1] describe the mechanism by which a remote peer can notify the local QUIC stack to change the destination connection ID (a.k.a. CID) the local stack uses to identify the connection at the remote peer. Each CID is associated with a sequence number. The sequence number is transmitted in NEW_CONNECTION_ID and RETIRE_CONNECTION_ID frames to identify the CID which is being either associated with a connection or retired.  The remote peer sends a NEW_CONNECTION_ID frame to let the local stack know a new CID is being associated with an existing connection. The NEW_CONNECTION_ID frame carries the new CID, its sequence number, and the retire-prior-to number. The retire-prior-to identifies existing CIDs that are to be retired. The local QUIC stack must send a RETIRE_CONNECTION_ID for every destination CID whose sequence number is less than retire-prior-to. The CID becomes retired after the local stack receives an ACK for its RETIRE_CONNECTION_ID frame.  Although the OpenSSL QUIC stack supports at most one destination CID for every connection, it can be tricked into processing more than one RETIRE_CONNECTION_ID frame per connection. The OpenSSL QUIC stack currently retires the destination CID as soon as it receives the NEW_CONNECTION_ID, while in fact the destination CID must be retired after an ACK for the RETIRE_CONNECTION_ID frame is received. Correcting the flawed logic also fixes the backlog growth.  [1] https://datatracker.ietf.org/doc/html/rfc9000#name-issuing-connection-ids  FIPS impact: no The FIPS module is not affected as the QUIC implementation is outside of the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-84784","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-84784","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-84784","date":"2026-10-27","epss":0.00607,"percentile":0.48831}],"urls":["https://github.com/openssl/openssl/commit/4685c914b0d410b1034f40b547c95bc95e7a380a","https://github.com/openssl/openssl/commit/9a30fe0fba195c14e5b87bf93c0d0fdb70373806","https://github.com/openssl/openssl/commit/dba3c48d653c64fcbc9070a17a0ee2b3e2f3af1f","https://github.com/openssl/openssl/commit/e9e5155833fa968bee50024bf9ca3a185ab599fe","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-84784","description":"Issue summary: A malicious remote peer may flood the local QUIC\nstack with NEW_CONNECTION_ID frames by avoiding a limit check on\nhow many connection IDs the remote QUIC stack can use.\n\nImpact summary: The local QUIC stack sends a RETIRE_CONN_ID frame\nfor every NEW_CONNECTION_ID frame it receives. The RETIRE_CONN_ID\nframe is dispatched via the Control Frame Queue (CFQ). If the remote\npeer also withholds ACKs, then it can force the local stack\nto allocate ~400MB (depending on ACK delay).\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: RFC 9000 sections 5.1.1 and 5.1.2 [1] describe the mechanism\nby which a remote peer can notify the local QUIC stack to change the\ndestination connection ID (a.k.a. CID) the local stack uses to\nidentify the connection at the remote peer. Each CID is associated\nwith a sequence number. The sequence number is transmitted\nin NEW_CONNECTION_ID and RETIRE_CONNECTION_ID frames to identify the CID\nwhich is being either associated with a connection or retired.\n\nThe remote peer sends a NEW_CONNECTION_ID frame to let the local stack know\na new CID is being associated with an existing connection. The\nNEW_CONNECTION_ID frame carries the new CID, its sequence number, and the\nretire-prior-to number. The retire-prior-to identifies existing\nCIDs that are to be retired. The local QUIC stack must send a\nRETIRE_CONNECTION_ID for every destination CID whose sequence number\nis less than retire-prior-to. The CID becomes retired after the\nlocal stack receives an ACK for its RETIRE_CONNECTION_ID frame.\n\nAlthough the OpenSSL QUIC stack supports at most one destination CID\nfor every connection, it can be tricked into processing more than\none RETIRE_CONNECTION_ID frame per connection. The OpenSSL QUIC\nstack currently retires the destination CID as soon as it receives\nthe NEW_CONNECTION_ID, while in fact the destination CID must\nbe retired after an ACK for the RETIRE_CONNECTION_ID frame is received.\nCorrecting the flawed logic also fixes the backlog growth.\n\n[1] https://datatracker.ietf.org/doc/html/rfc9000#name-issuing-connection-ids\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-84784","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-84784","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-84784","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-84784","date":"2026-10-27","epss":0.00607,"percentile":0.48831}],"risk":0.45525,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-84784","description":"Issue summary: A malicious remote peer may flood the local QUIC stack with NEW_CONNECTION_ID frames by avoiding a limit check on how many connection IDs the remote QUIC stack can use.  Impact summary: The local QUIC stack sends a RETIRE_CONN_ID frame for every NEW_CONNECTION_ID frame it receives. The RETIRE_CONN_ID frame is dispatched via the Control Frame Queue (CFQ). If the remote peer also withholds ACKs, then it can force the local stack to allocate ~400MB (depending on ACK delay).  CWE: CWE-770: Allocation of Resources Without Limits or Throttling  Description: RFC 9000 sections 5.1.1 and 5.1.2 [1] describe the mechanism by which a remote peer can notify the local QUIC stack to change the destination connection ID (a.k.a. CID) the local stack uses to identify the connection at the remote peer. Each CID is associated with a sequence number. The sequence number is transmitted in NEW_CONNECTION_ID and RETIRE_CONNECTION_ID frames to identify the CID which is being either associated with a connection or retired.  The remote peer sends a NEW_CONNECTION_ID frame to let the local stack know a new CID is being associated with an existing connection. The NEW_CONNECTION_ID frame carries the new CID, its sequence number, and the retire-prior-to number. The retire-prior-to identifies existing CIDs that are to be retired. The local QUIC stack must send a RETIRE_CONNECTION_ID for every destination CID whose sequence number is less than retire-prior-to. The CID becomes retired after the local stack receives an ACK for its RETIRE_CONNECTION_ID frame.  Although the OpenSSL QUIC stack supports at most one destination CID for every connection, it can be tricked into processing more than one RETIRE_CONNECTION_ID frame per connection. The OpenSSL QUIC stack currently retires the destination CID as soon as it receives the NEW_CONNECTION_ID, while in fact the destination CID must be retired after an ACK for the RETIRE_CONNECTION_ID frame is received. Correcting the flawed logic also fixes the backlog growth.  [1] https://datatracker.ietf.org/doc/html/rfc9000#name-issuing-connection-ids  FIPS impact: no The FIPS module is not affected as the QUIC implementation is outside of the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-84784","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-84784","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-84784","date":"2026-10-27","epss":0.00607,"percentile":0.48831}],"urls":["https://github.com/openssl/openssl/commit/4685c914b0d410b1034f40b547c95bc95e7a380a","https://github.com/openssl/openssl/commit/9a30fe0fba195c14e5b87bf93c0d0fdb70373806","https://github.com/openssl/openssl/commit/dba3c48d653c64fcbc9070a17a0ee2b3e2f3af1f","https://github.com/openssl/openssl/commit/e9e5155833fa968bee50024bf9ca3a185ab599fe","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-84784","description":"Issue summary: A malicious remote peer may flood the local QUIC\nstack with NEW_CONNECTION_ID frames by avoiding a limit check on\nhow many connection IDs the remote QUIC stack can use.\n\nImpact summary: The local QUIC stack sends a RETIRE_CONN_ID frame\nfor every NEW_CONNECTION_ID frame it receives. The RETIRE_CONN_ID\nframe is dispatched via the Control Frame Queue (CFQ). If the remote\npeer also withholds ACKs, then it can force the local stack\nto allocate ~400MB (depending on ACK delay).\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: RFC 9000 sections 5.1.1 and 5.1.2 [1] describe the mechanism\nby which a remote peer can notify the local QUIC stack to change the\ndestination connection ID (a.k.a. CID) the local stack uses to\nidentify the connection at the remote peer. Each CID is associated\nwith a sequence number. The sequence number is transmitted\nin NEW_CONNECTION_ID and RETIRE_CONNECTION_ID frames to identify the CID\nwhich is being either associated with a connection or retired.\n\nThe remote peer sends a NEW_CONNECTION_ID frame to let the local stack know\na new CID is being associated with an existing connection. The\nNEW_CONNECTION_ID frame carries the new CID, its sequence number, and the\nretire-prior-to number. The retire-prior-to identifies existing\nCIDs that are to be retired. The local QUIC stack must send a\nRETIRE_CONNECTION_ID for every destination CID whose sequence number\nis less than retire-prior-to. The CID becomes retired after the\nlocal stack receives an ACK for its RETIRE_CONNECTION_ID frame.\n\nAlthough the OpenSSL QUIC stack supports at most one destination CID\nfor every connection, it can be tricked into processing more than\none RETIRE_CONNECTION_ID frame per connection. The OpenSSL QUIC\nstack currently retires the destination CID as soon as it receives\nthe NEW_CONNECTION_ID, while in fact the destination CID must\nbe retired after an ACK for the RETIRE_CONNECTION_ID frame is received.\nCorrecting the flawed logic also fixes the backlog growth.\n\n[1] https://datatracker.ietf.org/doc/html/rfc9000#name-issuing-connection-ids\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-84784","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-84784","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-84784","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-84784","date":"2026-10-27","epss":0.00607,"percentile":0.48831}],"risk":0.45525,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-84784","description":"Issue summary: A malicious remote peer may flood the local QUIC stack with NEW_CONNECTION_ID frames by avoiding a limit check on how many connection IDs the remote QUIC stack can use.  Impact summary: The local QUIC stack sends a RETIRE_CONN_ID frame for every NEW_CONNECTION_ID frame it receives. The RETIRE_CONN_ID frame is dispatched via the Control Frame Queue (CFQ). If the remote peer also withholds ACKs, then it can force the local stack to allocate ~400MB (depending on ACK delay).  CWE: CWE-770: Allocation of Resources Without Limits or Throttling  Description: RFC 9000 sections 5.1.1 and 5.1.2 [1] describe the mechanism by which a remote peer can notify the local QUIC stack to change the destination connection ID (a.k.a. CID) the local stack uses to identify the connection at the remote peer. Each CID is associated with a sequence number. The sequence number is transmitted in NEW_CONNECTION_ID and RETIRE_CONNECTION_ID frames to identify the CID which is being either associated with a connection or retired.  The remote peer sends a NEW_CONNECTION_ID frame to let the local stack know a new CID is being associated with an existing connection. 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[1] https://datatracker.ietf.org/doc/html/rfc9000#name-issuing-connection-ids  FIPS impact: no The FIPS module is not affected as the QUIC implementation is outside of the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-84784","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-84784","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-84784","date":"2026-10-27","epss":0.00607,"percentile":0.48831}],"urls":["https://github.com/openssl/openssl/commit/4685c914b0d410b1034f40b547c95bc95e7a380a","https://github.com/openssl/openssl/commit/9a30fe0fba195c14e5b87bf93c0d0fdb70373806","https://github.com/openssl/openssl/commit/dba3c48d653c64fcbc9070a17a0ee2b3e2f3af1f","https://github.com/openssl/openssl/commit/e9e5155833fa968bee50024bf9ca3a185ab599fe","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-84784","description":"Issue summary: A malicious remote peer may flood the local QUIC\nstack with NEW_CONNECTION_ID frames by avoiding a limit check on\nhow many connection IDs the remote QUIC stack can use.\n\nImpact summary: The local QUIC stack sends a RETIRE_CONN_ID frame\nfor every NEW_CONNECTION_ID frame it receives. The RETIRE_CONN_ID\nframe is dispatched via the Control Frame Queue (CFQ). If the remote\npeer also withholds ACKs, then it can force the local stack\nto allocate ~400MB (depending on ACK delay).\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: RFC 9000 sections 5.1.1 and 5.1.2 [1] describe the mechanism\nby which a remote peer can notify the local QUIC stack to change the\ndestination connection ID (a.k.a. CID) the local stack uses to\nidentify the connection at the remote peer. Each CID is associated\nwith a sequence number. The sequence number is transmitted\nin NEW_CONNECTION_ID and RETIRE_CONNECTION_ID frames to identify the CID\nwhich is being either associated with a connection or retired.\n\nThe remote peer sends a NEW_CONNECTION_ID frame to let the local stack know\na new CID is being associated with an existing connection. The\nNEW_CONNECTION_ID frame carries the new CID, its sequence number, and the\nretire-prior-to number. The retire-prior-to identifies existing\nCIDs that are to be retired. The local QUIC stack must send a\nRETIRE_CONNECTION_ID for every destination CID whose sequence number\nis less than retire-prior-to. The CID becomes retired after the\nlocal stack receives an ACK for its RETIRE_CONNECTION_ID frame.\n\nAlthough the OpenSSL QUIC stack supports at most one destination CID\nfor every connection, it can be tricked into processing more than\none RETIRE_CONNECTION_ID frame per connection. The OpenSSL QUIC\nstack currently retires the destination CID as soon as it receives\nthe NEW_CONNECTION_ID, while in fact the destination CID must\nbe retired after an ACK for the RETIRE_CONNECTION_ID frame is received.\nCorrecting the flawed logic also fixes the backlog growth.\n\n[1] https://datatracker.ietf.org/doc/html/rfc9000#name-issuing-connection-ids\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-84784","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-84784","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-84784","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-84784","date":"2026-10-27","epss":0.00607,"percentile":0.48831}],"risk":0.45525,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-84784","description":"Issue summary: A malicious remote peer may flood the local QUIC stack with NEW_CONNECTION_ID frames by avoiding a limit check on how many connection IDs the remote QUIC stack can use.  Impact summary: The local QUIC stack sends a RETIRE_CONN_ID frame for every NEW_CONNECTION_ID frame it receives. The RETIRE_CONN_ID frame is dispatched via the Control Frame Queue (CFQ). If the remote peer also withholds ACKs, then it can force the local stack to allocate ~400MB (depending on ACK delay).  CWE: CWE-770: Allocation of Resources Without Limits or Throttling  Description: RFC 9000 sections 5.1.1 and 5.1.2 [1] describe the mechanism by which a remote peer can notify the local QUIC stack to change the destination connection ID (a.k.a. CID) the local stack uses to identify the connection at the remote peer. Each CID is associated with a sequence number. The sequence number is transmitted in NEW_CONNECTION_ID and RETIRE_CONNECTION_ID frames to identify the CID which is being either associated with a connection or retired.  The remote peer sends a NEW_CONNECTION_ID frame to let the local stack know a new CID is being associated with an existing connection. 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[1] https://datatracker.ietf.org/doc/html/rfc9000#name-issuing-connection-ids  FIPS impact: no The FIPS module is not affected as the QUIC implementation is outside of the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-84784","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-84784","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-84784","date":"2026-10-27","epss":0.00607,"percentile":0.48831}],"urls":["https://github.com/openssl/openssl/commit/4685c914b0d410b1034f40b547c95bc95e7a380a","https://github.com/openssl/openssl/commit/9a30fe0fba195c14e5b87bf93c0d0fdb70373806","https://github.com/openssl/openssl/commit/dba3c48d653c64fcbc9070a17a0ee2b3e2f3af1f","https://github.com/openssl/openssl/commit/e9e5155833fa968bee50024bf9ca3a185ab599fe","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-84784","description":"Issue summary: A malicious remote peer may flood the local QUIC\nstack with NEW_CONNECTION_ID frames by avoiding a limit check on\nhow many connection IDs the remote QUIC stack can use.\n\nImpact summary: The local QUIC stack sends a RETIRE_CONN_ID frame\nfor every NEW_CONNECTION_ID frame it receives. 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The retire-prior-to identifies existing\nCIDs that are to be retired. The local QUIC stack must send a\nRETIRE_CONNECTION_ID for every destination CID whose sequence number\nis less than retire-prior-to. The CID becomes retired after the\nlocal stack receives an ACK for its RETIRE_CONNECTION_ID frame.\n\nAlthough the OpenSSL QUIC stack supports at most one destination CID\nfor every connection, it can be tricked into processing more than\none RETIRE_CONNECTION_ID frame per connection. 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Impact summary: A remote peer that can complete a QUIC handshake can cause connection-scoped memory growth which may lead to Denial of Service through memory exhaustion, especially with sustained traffic or many concurrent QUIC connections.  CWE: CWE-770: Allocation of Resources Without Limits or Throttling  Description: When the OpenSSL QUIC stack sends an ACK-only packet, there is no requirement by the QUIC protocol that the peer will acknowledge that ACK-only packet (i.e. it is itself not ack-eliciting). However, the OpenSSL implementation stores the metadata about the ACK frames regardless. 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However, the OpenSSL\nimplementation stores the metadata about the ACK frames regardless.\nIn and of itself that's ok, but if a malicious peer establishes a connection, and\nthen drives the connection such that ACK-only packets are forced from the \nOpenSSL implementation peer (i.e., by sending numerous PING frames),\nand then withholding any subsequent acks for ack-eliciting data, like\nlegitimate data, said malicious peer can force inappropriate memory growth\non the OpenSSL peer, potentially leading to a Denial of Service.\n\nThe fix is to ensure that we account for the transmission of the ACK-only\npacket in the packet histories high and low watermark without actually storing\nthe ACK-only packet metadata itself.\n\nFIPS impact: no\nThe OpenSSL FIPS module is not affected as the QUIC code is\noutside the FIPS module boundary."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-63075","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-63075","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63075","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63075","date":"2026-10-27","epss":0.0057,"percentile":0.47015}],"risk":0.4275,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-63075","description":"Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly sends ack-eliciting packets while not acknowledging ACK-only responses, the QUIC stack can retain ACK-only packet metadata for the lifetime of the connection.  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In and of itself that's ok, but if a malicious peer establishes a connection, and then drives the connection such that ACK-only packets are forced from the  OpenSSL implementation peer (i.e., by sending numerous PING frames), and then withholding any subsequent acks for ack-eliciting data, like legitimate data, said malicious peer can force inappropriate memory growth on the OpenSSL peer, potentially leading to a Denial of Service.  The fix is to ensure that we account for the transmission of the ACK-only packet in the packet histories high and low watermark without actually storing the ACK-only packet metadata itself.  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However, the OpenSSL\nimplementation stores the metadata about the ACK frames regardless.\nIn and of itself that's ok, but if a malicious peer establishes a connection, and\nthen drives the connection such that ACK-only packets are forced from the \nOpenSSL implementation peer (i.e., by sending numerous PING frames),\nand then withholding any subsequent acks for ack-eliciting data, like\nlegitimate data, said malicious peer can force inappropriate memory growth\non the OpenSSL peer, potentially leading to a Denial of Service.\n\nThe fix is to ensure that we account for the transmission of the ACK-only\npacket in the packet histories high and low watermark without actually storing\nthe ACK-only packet metadata itself.\n\nFIPS impact: no\nThe OpenSSL FIPS module is not affected as the QUIC code is\noutside the FIPS module boundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-63075","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-63075","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63075","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63075","date":"2026-10-27","epss":0.0057,"percentile":0.47015}],"risk":0.4275,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-63075","description":"Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly sends ack-eliciting packets while not acknowledging ACK-only responses, the QUIC stack can retain ACK-only packet metadata for the lifetime of the connection.  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In and of itself that's ok, but if a malicious peer establishes a connection, and then drives the connection such that ACK-only packets are forced from the  OpenSSL implementation peer (i.e., by sending numerous PING frames), and then withholding any subsequent acks for ack-eliciting data, like legitimate data, said malicious peer can force inappropriate memory growth on the OpenSSL peer, potentially leading to a Denial of Service.  The fix is to ensure that we account for the transmission of the ACK-only packet in the packet histories high and low watermark without actually storing the ACK-only packet metadata itself.  FIPS impact: no The OpenSSL FIPS module is not affected as the QUIC code is outside the FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-63075","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63075","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63075","date":"2026-10-27","epss":0.0057,"percentile":0.47015}],"urls":["https://github.com/openssl/openssl/commit/7308946576b12e64b8be53bcf0a120354b2b42bc","https://github.com/openssl/openssl/commit/7c98d79738549df92868e7dd9be4bbf061eed709","https://github.com/openssl/openssl/commit/bf84721c2548351176e367e6de505792f0118dc6","https://github.com/openssl/openssl/commit/c902e5f16d6a9e130e96d3ca6d8f64d71652e393","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-63075","description":"Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly\nsends ack-eliciting packets while not acknowledging ACK-only responses, the\nQUIC stack can retain ACK-only packet metadata for the lifetime of the\nconnection.\n\nImpact summary: A remote peer that can complete a QUIC handshake can\ncause connection-scoped memory growth which may lead to Denial of Service\nthrough memory exhaustion, especially with sustained traffic or many concurrent\nQUIC connections.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: When the OpenSSL QUIC stack sends an ACK-only packet,\nthere is no requirement by the QUIC protocol that the peer will acknowledge\nthat ACK-only packet (i.e. it is itself not ack-eliciting). However, the OpenSSL\nimplementation stores the metadata about the ACK frames regardless.\nIn and of itself that's ok, but if a malicious peer establishes a connection, and\nthen drives the connection such that ACK-only packets are forced from the \nOpenSSL implementation peer (i.e., by sending numerous PING frames),\nand then withholding any subsequent acks for ack-eliciting data, like\nlegitimate data, said malicious peer can force inappropriate memory growth\non the OpenSSL peer, potentially leading to a Denial of Service.\n\nThe fix is to ensure that we account for the transmission of the ACK-only\npacket in the packet histories high and low watermark without actually storing\nthe ACK-only packet metadata itself.\n\nFIPS impact: no\nThe OpenSSL FIPS module is not affected as the QUIC code is\noutside the FIPS module boundary."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-63075","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-63075","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63075","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63075","date":"2026-10-27","epss":0.0057,"percentile":0.47015}],"risk":0.4275,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-63075","description":"Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly sends ack-eliciting packets while not acknowledging ACK-only responses, the QUIC stack can retain ACK-only packet metadata for the lifetime of the connection.  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FIPS impact: no The OpenSSL FIPS module is not affected as the QUIC code is outside the FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-63075","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63075","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63075","date":"2026-10-27","epss":0.0057,"percentile":0.47015}],"urls":["https://github.com/openssl/openssl/commit/7308946576b12e64b8be53bcf0a120354b2b42bc","https://github.com/openssl/openssl/commit/7c98d79738549df92868e7dd9be4bbf061eed709","https://github.com/openssl/openssl/commit/bf84721c2548351176e367e6de505792f0118dc6","https://github.com/openssl/openssl/commit/c902e5f16d6a9e130e96d3ca6d8f64d71652e393","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-63075","description":"Issue summary: When OpenSSL processes QUIC traffic from a peer that repeatedly\nsends ack-eliciting packets while not acknowledging ACK-only responses, the\nQUIC stack can retain ACK-only packet metadata for the lifetime of the\nconnection.\n\nImpact summary: A remote peer that can complete a QUIC handshake can\ncause connection-scoped memory growth which may lead to Denial of Service\nthrough memory exhaustion, especially with sustained traffic or many concurrent\nQUIC connections.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: When the OpenSSL QUIC stack sends an ACK-only packet,\nthere is no requirement by the QUIC protocol that the peer will acknowledge\nthat ACK-only packet (i.e. it is itself not ack-eliciting). 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A literal double quote in the output glob closes the dquote wrapper, and the characters that follow are evaluated as Perl.\n\nArbitrary Perl in the output glob executes at the calling process's privilege."}]},{"artifact":{"id":"c8ce23e36f4d6bca","cpes":["cpe:2.3:a:libpcre2-8-0:libpcre2-8-0:10.46-1\\~deb13u1:*:*:*:*:*:*:*","cpe:2.3:a:libpcre2-8-0:libpcre2_8_0:10.46-1\\~deb13u1:*:*:*:*:*:*:*","cpe:2.3:a:libpcre2_8_0:libpcre2-8-0:10.46-1\\~deb13u1:*:*:*:*:*:*:*","cpe:2.3:a:libpcre2_8_0:libpcre2_8_0:10.46-1\\~deb13u1:*:*:*:*:*:*:*","cpe:2.3:a:libpcre2-8:libpcre2-8-0:10.46-1\\~deb13u1:*:*:*:*:*:*:*","cpe:2.3:a:libpcre2-8:libpcre2_8_0:10.46-1\\~deb13u1:*:*:*:*:*:*:*","cpe:2.3:a:libpcre2_8:libpcre2-8-0:10.46-1\\~deb13u1:*:*:*:*:*:*:*","cpe:2.3:a:libpcre2_8:libpcre2_8_0:10.46-1\\~deb13u1:*:*:*:*:*:*:*","cpe:2.3:a:libpcre2:libpcre2-8-0:10.46-1\\~deb13u1:*:*:*:*:*:*:*","cpe:2.3:a:libpcre2:libpcre2_8_0:10.46-1\\~deb13u1:*:*:*:*:*:*:*"],"name":"libpcre2-8-0","purl":"pkg:deb/debian/libpcre2-8-0@10.46-1~deb13u1?arch=amd64&distro=debian-13.4&upstream=pcre2","type":"deb","version":"10.46-1~deb13u1","language":"","licenses":["BSD-2-clause","BSD-3-clause","BSD-3-clause-Cambridge","X11","public-domain"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libpcre2-8-0/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libpcre2-8-0/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libpcre2-8-0:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libpcre2-8-0:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"pcre2"}]},"matchDetails":[{"fix":{"suggestedVersion":"10.46-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-86145","versionConstraint":"< 10.46-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"pcre2","version":"10.46-1~deb13u1"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-86145","fix":{"state":"fixed","versions":["10.46-1~deb13u2"],"available":[{"date":"2026-09-13","kind":"first-observed","version":"10.46-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"cve@mitre.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L","metrics":{"baseScore":8.2,"impactScore":4.3,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-86145","cwe":"CWE-424","type":"Secondary","source":"cve@mitre.org"}],"epss":[{"cve":"CVE-2026-86145","date":"2026-10-27","epss":0.00425,"percentile":0.36545}],"risk":0.333625,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-86145","description":"PCRE2 before 10.48 allows a pcre2_dfa_match out-of-bounds write because reuse of a cached workspace block, in a recursive DFA matching workspace, lacks a size check (even though a newly allocated block, for the same purpose, does have a size check). This outcome requires an attacker-controlled regular expression, or a recursive pattern in conjunction with a small heap limit (this can be set through the API)."},"relatedVulnerabilities":[{"id":"CVE-2026-86145","cvss":[{"type":"Secondary","source":"cve@mitre.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L","metrics":{"baseScore":8.2,"impactScore":4.3,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-86145","cwe":"CWE-424","type":"Secondary","source":"cve@mitre.org"}],"epss":[{"cve":"CVE-2026-86145","date":"2026-10-27","epss":0.00425,"percentile":0.36545}],"urls":["https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48","https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-3r4p-g7gg-ppmf","http://www.openwall.com/lists/oss-security/2026/09/05/3"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-86145","description":"PCRE2 before 10.48 allows a pcre2_dfa_match out-of-bounds write because reuse of a cached workspace block, in a recursive DFA matching workspace, lacks a size check (even though a newly allocated block, for the same purpose, does have a size check). This outcome requires an attacker-controlled regular expression, or a recursive pattern in conjunction with a small heap limit (this can be set through the API)."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-63074","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-63074","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":5.9,"impactScore":3.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63074","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63074","date":"2026-10-27","epss":0.00588,"percentile":0.47904}],"risk":0.32046,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-63074","description":"Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches additional certificates (extraCerts) sent in a CMP message, but never expunges them (for instance if they are invalid).  If a server reuses an OSSL_CMP_CTX frequently, this cache of extraCerts may grow unboundedly, and a malicious client may flood a CMP server with requests driving this growth.  Impact summary: Users utilizing a CMP server that reuses a single OSSL_CMP_CTX for the lifetime of a server process may observe unbounded memory growth in the event a malicious client repeatedly sends requests containing unique extra certificates, which may lead to OOM conditions.  CWE: CWE-770: Allocation of Resources Without Limits or Throttling  Description: If a remote user sends CMP messages to a server with a list of extraCerts and the message is rejected, the extraCerts from the message remains in the server contexts untrusted certificate stack.  This exposes servers with long lived ctx objects to Denial of Service attacks in which an attacker sends messages intending to be rejected with a large list of additional certificates repeatedly, forcing the server to store them indefinitely.     The issue was fixed by removing the added extra certs if the message is rejected, using the same method as when the context is configured to not do caching at all.  FIPS impact: no As the CMP code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE."},"relatedVulnerabilities":[{"id":"CVE-2026-63074","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":5.9,"impactScore":3.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63074","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63074","date":"2026-10-27","epss":0.00588,"percentile":0.47904}],"urls":["https://github.com/openssl/openssl/commit/01e567978a55fba18142a230380c31296049fae7","https://github.com/openssl/openssl/commit/21a5d9658b0c66daace60e10ea18ff32a448de9f","https://github.com/openssl/openssl/commit/74ae7f6df47a5767c1010b88c47507dfc5b32c46","https://github.com/openssl/openssl/commit/75360af9650d4e0c82ba0050c5c9912cd79e54af","https://github.com/openssl/openssl/commit/f636f9ca0fa1bae5b42f9e787f025c96fb09c43a","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-63074","description":"Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches\nadditional certificates (extraCerts) sent in a CMP message, but never expunges\nthem (for instance if they are invalid).  If a server reuses an OSSL_CMP_CTX\nfrequently, this cache of extraCerts may grow unboundedly, and a malicious\nclient may flood a CMP server with requests driving this growth.\n\nImpact summary: Users utilizing a CMP server that reuses a single OSSL_CMP_CTX\nfor the lifetime of a server process may observe unbounded memory growth in the\nevent a malicious client repeatedly sends requests containing unique extra\ncertificates, which may lead to OOM conditions.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: If a remote user sends CMP messages to a server with a list of\nextraCerts and the message is rejected, the extraCerts from the message remains\nin the server contexts untrusted certificate stack.  This exposes servers with\nlong lived ctx objects to Denial of Service attacks in which an attacker sends\nmessages intending to be rejected with a large list of additional certificates\nrepeatedly, forcing the server to store them indefinitely.\n   \nThe issue was fixed by removing the added extra certs if the message is\nrejected, using the same method as when the context is configured to not do\ncaching at all.\n\nFIPS impact: no\nAs the CMP code lives outside the FIPS module boundary, no FIPS\nmodules are affected by this CVE."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-63074","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-63074","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":5.9,"impactScore":3.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63074","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63074","date":"2026-10-27","epss":0.00588,"percentile":0.47904}],"risk":0.32046,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-63074","description":"Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches additional certificates (extraCerts) sent in a CMP message, but never expunges them (for instance if they are invalid).  If a server reuses an OSSL_CMP_CTX frequently, this cache of extraCerts may grow unboundedly, and a malicious client may flood a CMP server with requests driving this growth.  Impact summary: Users utilizing a CMP server that reuses a single OSSL_CMP_CTX for the lifetime of a server process may observe unbounded memory growth in the event a malicious client repeatedly sends requests containing unique extra certificates, which may lead to OOM conditions.  CWE: CWE-770: Allocation of Resources Without Limits or Throttling  Description: If a remote user sends CMP messages to a server with a list of extraCerts and the message is rejected, the extraCerts from the message remains in the server contexts untrusted certificate stack.  This exposes servers with long lived ctx objects to Denial of Service attacks in which an attacker sends messages intending to be rejected with a large list of additional certificates repeatedly, forcing the server to store them indefinitely.     The issue was fixed by removing the added extra certs if the message is rejected, using the same method as when the context is configured to not do caching at all.  FIPS impact: no As the CMP code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE."},"relatedVulnerabilities":[{"id":"CVE-2026-63074","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":5.9,"impactScore":3.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63074","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63074","date":"2026-10-27","epss":0.00588,"percentile":0.47904}],"urls":["https://github.com/openssl/openssl/commit/01e567978a55fba18142a230380c31296049fae7","https://github.com/openssl/openssl/commit/21a5d9658b0c66daace60e10ea18ff32a448de9f","https://github.com/openssl/openssl/commit/74ae7f6df47a5767c1010b88c47507dfc5b32c46","https://github.com/openssl/openssl/commit/75360af9650d4e0c82ba0050c5c9912cd79e54af","https://github.com/openssl/openssl/commit/f636f9ca0fa1bae5b42f9e787f025c96fb09c43a","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-63074","description":"Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches\nadditional certificates (extraCerts) sent in a CMP message, but never expunges\nthem (for instance if they are invalid).  If a server reuses an OSSL_CMP_CTX\nfrequently, this cache of extraCerts may grow unboundedly, and a malicious\nclient may flood a CMP server with requests driving this growth.\n\nImpact summary: Users utilizing a CMP server that reuses a single OSSL_CMP_CTX\nfor the lifetime of a server process may observe unbounded memory growth in the\nevent a malicious client repeatedly sends requests containing unique extra\ncertificates, which may lead to OOM conditions.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: If a remote user sends CMP messages to a server with a list of\nextraCerts and the message is rejected, the extraCerts from the message remains\nin the server contexts untrusted certificate stack.  This exposes servers with\nlong lived ctx objects to Denial of Service attacks in which an attacker sends\nmessages intending to be rejected with a large list of additional certificates\nrepeatedly, forcing the server to store them indefinitely.\n   \nThe issue was fixed by removing the added extra certs if the message is\nrejected, using the same method as when the context is configured to not do\ncaching at all.\n\nFIPS impact: no\nAs the CMP code lives outside the FIPS module boundary, no FIPS\nmodules are affected by this CVE."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-63074","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-63074","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":5.9,"impactScore":3.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63074","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63074","date":"2026-10-27","epss":0.00588,"percentile":0.47904}],"risk":0.32046,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-63074","description":"Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches additional certificates (extraCerts) sent in a CMP message, but never expunges them (for instance if they are invalid).  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The issue was fixed by removing the added extra certs if the message is rejected, using the same method as when the context is configured to not do caching at all.  FIPS impact: no As the CMP code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE."},"relatedVulnerabilities":[{"id":"CVE-2026-63074","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":5.9,"impactScore":3.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63074","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63074","date":"2026-10-27","epss":0.00588,"percentile":0.47904}],"urls":["https://github.com/openssl/openssl/commit/01e567978a55fba18142a230380c31296049fae7","https://github.com/openssl/openssl/commit/21a5d9658b0c66daace60e10ea18ff32a448de9f","https://github.com/openssl/openssl/commit/74ae7f6df47a5767c1010b88c47507dfc5b32c46","https://github.com/openssl/openssl/commit/75360af9650d4e0c82ba0050c5c9912cd79e54af","https://github.com/openssl/openssl/commit/f636f9ca0fa1bae5b42f9e787f025c96fb09c43a","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-63074","description":"Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches\nadditional certificates (extraCerts) sent in a CMP message, but never expunges\nthem (for instance if they are invalid).  If a server reuses an OSSL_CMP_CTX\nfrequently, this cache of extraCerts may grow unboundedly, and a malicious\nclient may flood a CMP server with requests driving this growth.\n\nImpact summary: Users utilizing a CMP server that reuses a single OSSL_CMP_CTX\nfor the lifetime of a server process may observe unbounded memory growth in the\nevent a malicious client repeatedly sends requests containing unique extra\ncertificates, which may lead to OOM conditions.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: If a remote user sends CMP messages to a server with a list of\nextraCerts and the message is rejected, the extraCerts from the message remains\nin the server contexts untrusted certificate stack.  This exposes servers with\nlong lived ctx objects to Denial of Service attacks in which an attacker sends\nmessages intending to be rejected with a large list of additional certificates\nrepeatedly, forcing the server to store them indefinitely.\n   \nThe issue was fixed by removing the added extra certs if the message is\nrejected, using the same method as when the context is configured to not do\ncaching at all.\n\nFIPS impact: no\nAs the CMP code lives outside the FIPS module boundary, no FIPS\nmodules are affected by this CVE."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-63074","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-63074","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":5.9,"impactScore":3.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63074","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63074","date":"2026-10-27","epss":0.00588,"percentile":0.47904}],"risk":0.32046,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-63074","description":"Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches additional certificates (extraCerts) sent in a CMP message, but never expunges them (for instance if they are invalid).  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The issue was fixed by removing the added extra certs if the message is rejected, using the same method as when the context is configured to not do caching at all.  FIPS impact: no As the CMP code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE."},"relatedVulnerabilities":[{"id":"CVE-2026-63074","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":5.9,"impactScore":3.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-63074","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-63074","date":"2026-10-27","epss":0.00588,"percentile":0.47904}],"urls":["https://github.com/openssl/openssl/commit/01e567978a55fba18142a230380c31296049fae7","https://github.com/openssl/openssl/commit/21a5d9658b0c66daace60e10ea18ff32a448de9f","https://github.com/openssl/openssl/commit/74ae7f6df47a5767c1010b88c47507dfc5b32c46","https://github.com/openssl/openssl/commit/75360af9650d4e0c82ba0050c5c9912cd79e54af","https://github.com/openssl/openssl/commit/f636f9ca0fa1bae5b42f9e787f025c96fb09c43a","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-63074","description":"Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches\nadditional certificates (extraCerts) sent in a CMP message, but never expunges\nthem (for instance if they are invalid).  If a server reuses an OSSL_CMP_CTX\nfrequently, this cache of extraCerts may grow unboundedly, and a malicious\nclient may flood a CMP server with requests driving this growth.\n\nImpact summary: Users utilizing a CMP server that reuses a single OSSL_CMP_CTX\nfor the lifetime of a server process may observe unbounded memory growth in the\nevent a malicious client repeatedly sends requests containing unique extra\ncertificates, which may lead to OOM conditions.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: If a remote user sends CMP messages to a server with a list of\nextraCerts and the message is rejected, the extraCerts from the message remains\nin the server contexts untrusted certificate stack.  This exposes servers with\nlong lived ctx objects to Denial of Service attacks in which an attacker sends\nmessages intending to be rejected with a large list of additional certificates\nrepeatedly, forcing the server to store them indefinitely.\n   \nThe issue was fixed by removing the added extra certs if the message is\nrejected, using the same method as when the context is configured to not do\ncaching at all.\n\nFIPS impact: no\nAs the CMP code lives outside the FIPS module boundary, no FIPS\nmodules are affected by this CVE."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-42767","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-42767","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-10","kind":"first-observed","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":5.9,"impactScore":3.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42767","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42767","date":"2026-10-27","epss":0.00557,"percentile":0.46245}],"risk":0.30356500000000003,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-42767","description":"Issue summary: An attacker-controlled CMP (Certificate Management Protocol) server could trigger a NULL pointer dereference in a CMP client application.  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Applications which never call SSL_set_SSL_CTX() are not affected.  Impact summary: A remote peer may be able to cause a small out-of-bounds read, and in some circumstances a fixed-value out-of-bounds write, on the server heap. This may lead to a Denial of Service.  CWE: CWE-787: Out-of-bounds Write  Description: A TLS connection records how many certificate slots it has when it is created, taken from the SSL_CTX that created it: the built-in certificate types plus one slot for each provider TLS-SIGALG entry that context was aware of. That count sizes an internal array of per-slot certificate validity flags.  An application may replace a connection's SSL_CTX part way through the handshake by calling SSL_set_SSL_CTX(), most commonly from a servername callback in order to serve a different virtual host. Doing so did not refresh the recorded count. A provider signature algorithm's slot index is its position in the list of whichever context resolves it, so if the replacement context is aware of more of them than the original, an algorithm offered by the peer can resolve to an index beyond the end of the array. Processing the peer's signature algorithms then reads one four byte word past the end for each such algorithm and, where the word read is zero, writes a fixed value over it. A peer offering many of them can corrupt heap metadata and abort the process.  Only provider signature algorithms which occupy one of the excess slots, and which the server also has configured, have this effect. Codepoints the replacement context does not recognise are discarded without being resolved to a slot, and provider signature algorithms are usable only from TLS 1.3.  The two contexts must therefore be aware of different numbers of provider signature algorithms, which requires separate library contexts, a provider loaded between the two being created, or providers which differ in what they advertise - in 4.0, for example, the default provider advertises SM2 where the FIPS provider does not. A deployment meeting the condition is also unable to negotiate the affected algorithms with legitimate clients, since the same stale count hides the corresponding certificates, so the misconfiguration is likely to be noticed. For that reason, and because the configuration is not the default, this issue has been assessed as Low severity.  FIPS impact: no No FIPS modules are affected by this issue as the affected code is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-72897","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-72897","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-72897","date":"2026-10-27","epss":0.00388,"percentile":0.32762}],"urls":["https://github.com/openssl/openssl/commit/00646e5085a0d12d29e0d2f9b9bc5f7111a50922","https://github.com/openssl/openssl/commit/4135f553c9d3ba4a09fe752f5d30af2a6a092b2e","https://github.com/openssl/openssl/commit/9c54d209486f6b1ad79fe2179c40f13200fa4f61","https://github.com/openssl/openssl/commit/e87ed26b298a74d8ba61a53e9c7bcd1acac6b814","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-72897","description":"Issue summary: A TLS server that calls SSL_set_SSL_CTX() to switch a\nconnection to a different SSL_CTX part way through a handshake may access\nmemory beyond the end of an internal array if the replacement context knows\nabout more provider signature algorithms than the context the connection was\ncreated from. Applications which never call SSL_set_SSL_CTX() are not\naffected.\n\nImpact summary: A remote peer may be able to cause a small out-of-bounds\nread, and in some circumstances a fixed-value out-of-bounds write, on the\nserver heap. This may lead to a Denial of Service.\n\nCWE: CWE-787: Out-of-bounds Write\n\nDescription: A TLS connection records how many certificate slots it has\nwhen it is created, taken from the SSL_CTX that created it: the built-in\ncertificate types plus one slot for each provider TLS-SIGALG entry that\ncontext was aware of. That count sizes an internal array of per-slot\ncertificate validity flags.\n\nAn application may replace a connection's SSL_CTX part way through the\nhandshake by calling SSL_set_SSL_CTX(), most commonly from a servername\ncallback in order to serve a different virtual host. Doing so did not\nrefresh the recorded count. A provider signature algorithm's slot index is\nits position in the list of whichever context resolves it, so if the\nreplacement context is aware of more of them than the original, an\nalgorithm offered by the peer can resolve to an index beyond the end of the\narray. Processing the peer's signature algorithms then reads one four byte\nword past the end for each such algorithm and, where the word read is zero,\nwrites a fixed value over it. A peer offering many of them can corrupt heap\nmetadata and abort the process.\n\nOnly provider signature algorithms which occupy one of the excess slots,\nand which the server also has configured, have this effect. Codepoints the\nreplacement context does not recognise are discarded without being resolved\nto a slot, and provider signature algorithms are usable only from TLS 1.3.\n\nThe two contexts must therefore be aware of different numbers of provider\nsignature algorithms, which requires separate library contexts, a provider\nloaded between the two being created, or providers which differ in what\nthey advertise - in 4.0, for example, the default provider advertises SM2\nwhere the FIPS provider does not. A deployment meeting the condition is\nalso unable to negotiate the affected algorithms with legitimate clients,\nsince the same stale count hides the corresponding certificates, so the\nmisconfiguration is likely to be noticed. For that reason, and because the\nconfiguration is not the default, this issue has been assessed as Low\nseverity.\n\nFIPS impact: no\nNo FIPS modules are affected by this issue as the affected code is outside\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-72897","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-72897","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-72897","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-72897","date":"2026-10-27","epss":0.00388,"percentile":0.32762}],"risk":0.29100000000000004,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-72897","description":"Issue summary: A TLS server that calls SSL_set_SSL_CTX() to switch a connection to a different SSL_CTX part way through a handshake may access memory beyond the end of an internal array if the replacement context knows about more provider signature algorithms than the context the connection was created from. Applications which never call SSL_set_SSL_CTX() are not affected.  Impact summary: A remote peer may be able to cause a small out-of-bounds read, and in some circumstances a fixed-value out-of-bounds write, on the server heap. This may lead to a Denial of Service.  CWE: CWE-787: Out-of-bounds Write  Description: A TLS connection records how many certificate slots it has when it is created, taken from the SSL_CTX that created it: the built-in certificate types plus one slot for each provider TLS-SIGALG entry that context was aware of. That count sizes an internal array of per-slot certificate validity flags.  An application may replace a connection's SSL_CTX part way through the handshake by calling SSL_set_SSL_CTX(), most commonly from a servername callback in order to serve a different virtual host. Doing so did not refresh the recorded count. A provider signature algorithm's slot index is its position in the list of whichever context resolves it, so if the replacement context is aware of more of them than the original, an algorithm offered by the peer can resolve to an index beyond the end of the array. Processing the peer's signature algorithms then reads one four byte word past the end for each such algorithm and, where the word read is zero, writes a fixed value over it. A peer offering many of them can corrupt heap metadata and abort the process.  Only provider signature algorithms which occupy one of the excess slots, and which the server also has configured, have this effect. Codepoints the replacement context does not recognise are discarded without being resolved to a slot, and provider signature algorithms are usable only from TLS 1.3.  The two contexts must therefore be aware of different numbers of provider signature algorithms, which requires separate library contexts, a provider loaded between the two being created, or providers which differ in what they advertise - in 4.0, for example, the default provider advertises SM2 where the FIPS provider does not. A deployment meeting the condition is also unable to negotiate the affected algorithms with legitimate clients, since the same stale count hides the corresponding certificates, so the misconfiguration is likely to be noticed. For that reason, and because the configuration is not the default, this issue has been assessed as Low severity.  FIPS impact: no No FIPS modules are affected by this issue as the affected code is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-72897","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-72897","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-72897","date":"2026-10-27","epss":0.00388,"percentile":0.32762}],"urls":["https://github.com/openssl/openssl/commit/00646e5085a0d12d29e0d2f9b9bc5f7111a50922","https://github.com/openssl/openssl/commit/4135f553c9d3ba4a09fe752f5d30af2a6a092b2e","https://github.com/openssl/openssl/commit/9c54d209486f6b1ad79fe2179c40f13200fa4f61","https://github.com/openssl/openssl/commit/e87ed26b298a74d8ba61a53e9c7bcd1acac6b814","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-72897","description":"Issue summary: A TLS server that calls SSL_set_SSL_CTX() to switch a\nconnection to a different SSL_CTX part way through a handshake may access\nmemory beyond the end of an internal array if the replacement context knows\nabout more provider signature algorithms than the context the connection was\ncreated from. Applications which never call SSL_set_SSL_CTX() are not\naffected.\n\nImpact summary: A remote peer may be able to cause a small out-of-bounds\nread, and in some circumstances a fixed-value out-of-bounds write, on the\nserver heap. This may lead to a Denial of Service.\n\nCWE: CWE-787: Out-of-bounds Write\n\nDescription: A TLS connection records how many certificate slots it has\nwhen it is created, taken from the SSL_CTX that created it: the built-in\ncertificate types plus one slot for each provider TLS-SIGALG entry that\ncontext was aware of. That count sizes an internal array of per-slot\ncertificate validity flags.\n\nAn application may replace a connection's SSL_CTX part way through the\nhandshake by calling SSL_set_SSL_CTX(), most commonly from a servername\ncallback in order to serve a different virtual host. Doing so did not\nrefresh the recorded count. A provider signature algorithm's slot index is\nits position in the list of whichever context resolves it, so if the\nreplacement context is aware of more of them than the original, an\nalgorithm offered by the peer can resolve to an index beyond the end of the\narray. Processing the peer's signature algorithms then reads one four byte\nword past the end for each such algorithm and, where the word read is zero,\nwrites a fixed value over it. A peer offering many of them can corrupt heap\nmetadata and abort the process.\n\nOnly provider signature algorithms which occupy one of the excess slots,\nand which the server also has configured, have this effect. Codepoints the\nreplacement context does not recognise are discarded without being resolved\nto a slot, and provider signature algorithms are usable only from TLS 1.3.\n\nThe two contexts must therefore be aware of different numbers of provider\nsignature algorithms, which requires separate library contexts, a provider\nloaded between the two being created, or providers which differ in what\nthey advertise - in 4.0, for example, the default provider advertises SM2\nwhere the FIPS provider does not. A deployment meeting the condition is\nalso unable to negotiate the affected algorithms with legitimate clients,\nsince the same stale count hides the corresponding certificates, so the\nmisconfiguration is likely to be noticed. For that reason, and because the\nconfiguration is not the default, this issue has been assessed as Low\nseverity.\n\nFIPS impact: no\nNo FIPS modules are affected by this issue as the affected code is outside\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-72897","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-72897","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-72897","cwe":"CWE-787","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-72897","date":"2026-10-27","epss":0.00388,"percentile":0.32762}],"risk":0.29100000000000004,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-72897","description":"Issue summary: A TLS server that calls SSL_set_SSL_CTX() to switch a connection to a different SSL_CTX part way through a handshake may access memory beyond the end of an internal array if the replacement context knows about more provider signature algorithms than the context the connection was created from. Applications which never call SSL_set_SSL_CTX() are not affected.  Impact summary: A remote peer may be able to cause a small out-of-bounds read, and in some circumstances a fixed-value out-of-bounds write, on the server heap. This may lead to a Denial of Service.  CWE: CWE-787: Out-of-bounds Write  Description: A TLS connection records how many certificate slots it has when it is created, taken from the SSL_CTX that created it: the built-in certificate types plus one slot for each provider TLS-SIGALG entry that context was aware of. That count sizes an internal array of per-slot certificate validity flags.  An application may replace a connection's SSL_CTX part way through the handshake by calling SSL_set_SSL_CTX(), most commonly from a servername callback in order to serve a different virtual host. Doing so did not refresh the recorded count. A provider signature algorithm's slot index is its position in the list of whichever context resolves it, so if the replacement context is aware of more of them than the original, an algorithm offered by the peer can resolve to an index beyond the end of the array. Processing the peer's signature algorithms then reads one four byte word past the end for each such algorithm and, where the word read is zero, writes a fixed value over it. A peer offering many of them can corrupt heap metadata and abort the process.  Only provider signature algorithms which occupy one of the excess slots, and which the server also has configured, have this effect. Codepoints the replacement context does not recognise are discarded without being resolved to a slot, and provider signature algorithms are usable only from TLS 1.3.  The two contexts must therefore be aware of different numbers of provider signature algorithms, which requires separate library contexts, a provider loaded between the two being created, or providers which differ in what they advertise - in 4.0, for example, the default provider advertises SM2 where the FIPS provider does not. A deployment meeting the condition is also unable to negotiate the affected algorithms with legitimate clients, since the same stale count hides the corresponding certificates, so the misconfiguration is likely to be noticed. For that reason, and because the configuration is not the default, this issue has been assessed as Low severity.  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Impact Summary: The Registration Autority could replace the root CA certificate for the CMP clients with an arbitrary root CA certificate.  One of the parts of the Certificate Management Protocol (CMP), specified in RFC 9810, is Root Certification Authority (root CA) key Rollover, which is sent by the server in a message with type 'id-it-rootCaKeyUpdate'. As part of these messages, 'newWithOld' certificate, the new root CA certificate signed with the old root CA key, is provided, and verifying its signature is crucial for transferring the trust from the old CA key to the new one.  The 'id-it-rootCaKeyUpdate' messages are expected to be processed with OSSL_CMP_get1_rootCaKeyUpdate(), that is expected to verify the 'newWithOld' certificate.  A typo in the certificate chain building code led to adding an incorrect certificate ('newWithOld' instead of 'oldRoot') to the certificate chain, rendering the certificate verification process ineffectual (only the issuer name and the algorithm OIDs were verified by other parts of the verification code).  An attacker who already has credentials that satisfy the CMP message protection checks can generate a new key pair and use a crafted self-signed certificate in its 'id-it-rootCaKeyUpdate' CMP messages which affected CMP clients would accept as a new trust anchor.  Significant preconditions for the attack (having valid RA-level credentials) are the reason the issue was assigned Low severity.  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A typo in the certificate chain building code led to adding\nan incorrect certificate ('newWithOld' instead of 'oldRoot') to the\ncertificate chain, rendering the certificate verification process ineffectual\n(only the issuer name and the algorithm OIDs were verified by other parts\nof the verification code).\n\nAn attacker who already has credentials that satisfy the CMP message\nprotection checks can generate a new key pair and use a crafted self-signed\ncertificate in its 'id-it-rootCaKeyUpdate' CMP messages which affected CMP\nclients would accept as a new trust anchor.\n\nSignificant preconditions for the attack (having valid RA-level credentials)\nare the reason the issue was assigned Low severity.\n\nThe FIPS modules are not affected by this issue, as the affected code is\noutside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-42769","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-42769","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-10","kind":"first-observed","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","metrics":{"baseScore":5.3,"impactScore":3.6,"exploitabilityScore":1.7},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42769","cwe":"CWE-295","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42769","date":"2026-10-27","epss":0.00544,"percentile":0.45482}],"risk":0.28016,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-42769","description":"Issue Summary: An error in the callback used to verify the certificate provided in a Root CA key update Certificate Management Protocol (CMP) message response rendered the certificate validation ineffectual, which could lead to escalation of credentials from the Registration Authority (RA) level to the root Certification Authority (root CA) level.  Impact Summary: The Registration Autority could replace the root CA certificate for the CMP clients with an arbitrary root CA certificate.  One of the parts of the Certificate Management Protocol (CMP), specified in RFC 9810, is Root Certification Authority (root CA) key Rollover, which is sent by the server in a message with type 'id-it-rootCaKeyUpdate'. As part of these messages, 'newWithOld' certificate, the new root CA certificate signed with the old root CA key, is provided, and verifying its signature is crucial for transferring the trust from the old CA key to the new one.  The 'id-it-rootCaKeyUpdate' messages are expected to be processed with OSSL_CMP_get1_rootCaKeyUpdate(), that is expected to verify the 'newWithOld' certificate.  A typo in the certificate chain building code led to adding an incorrect certificate ('newWithOld' instead of 'oldRoot') to the certificate chain, rendering the certificate verification process ineffectual (only the issuer name and the algorithm OIDs were verified by other parts of the verification code).  An attacker who already has credentials that satisfy the CMP message protection checks can generate a new key pair and use a crafted self-signed certificate in its 'id-it-rootCaKeyUpdate' CMP messages which affected CMP clients would accept as a new trust anchor.  Significant preconditions for the attack (having valid RA-level credentials) are the reason the issue was assigned Low severity.  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A typo in the certificate chain building code led to adding\nan incorrect certificate ('newWithOld' instead of 'oldRoot') to the\ncertificate chain, rendering the certificate verification process ineffectual\n(only the issuer name and the algorithm OIDs were verified by other parts\nof the verification code).\n\nAn attacker who already has credentials that satisfy the CMP message\nprotection checks can generate a new key pair and use a crafted self-signed\ncertificate in its 'id-it-rootCaKeyUpdate' CMP messages which affected CMP\nclients would accept as a new trust anchor.\n\nSignificant preconditions for the attack (having valid RA-level credentials)\nare the reason the issue was assigned Low severity.\n\nThe FIPS modules are not affected by this issue, as the affected code is\noutside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-42769","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-42769","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-10","kind":"first-observed","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","metrics":{"baseScore":5.3,"impactScore":3.6,"exploitabilityScore":1.7},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42769","cwe":"CWE-295","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42769","date":"2026-10-27","epss":0.00544,"percentile":0.45482}],"risk":0.28016,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-42769","description":"Issue Summary: An error in the callback used to verify the certificate provided in a Root CA key update Certificate Management Protocol (CMP) message response rendered the certificate validation ineffectual, which could lead to escalation of credentials from the Registration Authority (RA) level to the root Certification Authority (root CA) level.  Impact Summary: The Registration Autority could replace the root CA certificate for the CMP clients with an arbitrary root CA certificate.  One of the parts of the Certificate Management Protocol (CMP), specified in RFC 9810, is Root Certification Authority (root CA) key Rollover, which is sent by the server in a message with type 'id-it-rootCaKeyUpdate'. As part of these messages, 'newWithOld' certificate, the new root CA certificate signed with the old root CA key, is provided, and verifying its signature is crucial for transferring the trust from the old CA key to the new one.  The 'id-it-rootCaKeyUpdate' messages are expected to be processed with OSSL_CMP_get1_rootCaKeyUpdate(), that is expected to verify the 'newWithOld' certificate.  A typo in the certificate chain building code led to adding an incorrect certificate ('newWithOld' instead of 'oldRoot') to the certificate chain, rendering the certificate verification process ineffectual (only the issuer name and the algorithm OIDs were verified by other parts of the verification code).  An attacker who already has credentials that satisfy the CMP message protection checks can generate a new key pair and use a crafted self-signed certificate in its 'id-it-rootCaKeyUpdate' CMP messages which affected CMP clients would accept as a new trust anchor.  Significant preconditions for the attack (having valid RA-level credentials) are the reason the issue was assigned Low severity.  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A typo in the certificate chain building code led to adding\nan incorrect certificate ('newWithOld' instead of 'oldRoot') to the\ncertificate chain, rendering the certificate verification process ineffectual\n(only the issuer name and the algorithm OIDs were verified by other parts\nof the verification code).\n\nAn attacker who already has credentials that satisfy the CMP message\nprotection checks can generate a new key pair and use a crafted self-signed\ncertificate in its 'id-it-rootCaKeyUpdate' CMP messages which affected CMP\nclients would accept as a new trust anchor.\n\nSignificant preconditions for the attack (having valid RA-level credentials)\nare the reason the issue was assigned Low severity.\n\nThe FIPS modules are not affected by this issue, as the affected code is\noutside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-42769","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-42769","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-10","kind":"first-observed","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","metrics":{"baseScore":5.3,"impactScore":3.6,"exploitabilityScore":1.7},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42769","cwe":"CWE-295","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42769","date":"2026-10-27","epss":0.00544,"percentile":0.45482}],"risk":0.28016,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-42769","description":"Issue Summary: An error in the callback used to verify the certificate provided in a Root CA key update Certificate Management Protocol (CMP) message response rendered the certificate validation ineffectual, which could lead to escalation of credentials from the Registration Authority (RA) level to the root Certification Authority (root CA) level.  Impact Summary: The Registration Autority could replace the root CA certificate for the CMP clients with an arbitrary root CA certificate.  One of the parts of the Certificate Management Protocol (CMP), specified in RFC 9810, is Root Certification Authority (root CA) key Rollover, which is sent by the server in a message with type 'id-it-rootCaKeyUpdate'. As part of these messages, 'newWithOld' certificate, the new root CA certificate signed with the old root CA key, is provided, and verifying its signature is crucial for transferring the trust from the old CA key to the new one.  The 'id-it-rootCaKeyUpdate' messages are expected to be processed with OSSL_CMP_get1_rootCaKeyUpdate(), that is expected to verify the 'newWithOld' certificate.  A typo in the certificate chain building code led to adding an incorrect certificate ('newWithOld' instead of 'oldRoot') to the certificate chain, rendering the certificate verification process ineffectual (only the issuer name and the algorithm OIDs were verified by other parts of the verification code).  An attacker who already has credentials that satisfy the CMP message protection checks can generate a new key pair and use a crafted self-signed certificate in its 'id-it-rootCaKeyUpdate' CMP messages which affected CMP clients would accept as a new trust anchor.  Significant preconditions for the attack (having valid RA-level credentials) are the reason the issue was assigned Low severity.  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A typo in the certificate chain building code led to adding\nan incorrect certificate ('newWithOld' instead of 'oldRoot') to the\ncertificate chain, rendering the certificate verification process ineffectual\n(only the issuer name and the algorithm OIDs were verified by other parts\nof the verification code).\n\nAn attacker who already has credentials that satisfy the CMP message\nprotection checks can generate a new key pair and use a crafted self-signed\ncertificate in its 'id-it-rootCaKeyUpdate' CMP messages which affected CMP\nclients would accept as a new trust anchor.\n\nSignificant preconditions for the attack (having valid RA-level credentials)\nare the reason the issue was assigned Low severity.\n\nThe FIPS modules are not affected by this issue, as the affected code is\noutside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-34181","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-34181","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-10","kind":"first-observed","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","metrics":{"baseScore":7.4,"impactScore":5.2,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-34181","cwe":"CWE-354","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-34181","date":"2026-10-27","epss":0.00376,"percentile":0.3145}],"risk":0.28012,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-34181","description":"Issue Summary: The PKCS#12 file processing fails to perform sufficient input validation for files that use Password-Based Message Authentication Code 1 (PBMAC1) integrity mechanism allowing a certificate and private key forgery.  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The FIPS modules are not affected by this issue, as the affected code is outside the OpenSSL FIPS module 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The spurious match case is not possible in the standard Unicode character sets."}]},{"artifact":{"id":"f72e79a6273e08df","cpes":["cpe:2.3:a:libc6:libc6:2.41-12\\+deb13u2:*:*:*:*:*:*:*"],"name":"libc6","purl":"pkg:deb/debian/libc6@2.41-12%2Bdeb13u2?arch=amd64&distro=debian-13.4&upstream=glibc","type":"deb","version":"2.41-12+deb13u2","language":"","licenses":["BSD-2-clause","BSD-3-clause-Berkeley","BSD-3-clause-Carnegie","BSD-3-clause-Oracle","BSD-3-clause-WIDE","BSD-like-Spencer","BSL-1.0","CORE-MATH","Carnegie","DEC","FSFAP","GPL-2","GPL-2+","GPL-2+-with-link-exception","GPL-3","GPL-3+","IBM","ISC","Inner-Net","LGPL-2","LGPL-2+","LGPL-2.1","LGPL-2.1+","LGPL-2.1+-with-link-exception","LGPL-3","LGPL-3+","MIT-like-Lord","PCRE","SunPro","Unicode-DFS-2016","Univ-Coimbra","public-domain"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libc6/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libc6/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libc6:amd64.conffiles","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libc6:amd64.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libc6:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libc6:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"glibc"}]},"matchDetails":[{"fix":{"suggestedVersion":"2.41-12+deb13u4"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-5928","versionConstraint":"< 2.41-12+deb13u4 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"glibc","version":"2.41-12+deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-5928","fix":{"state":"fixed","versions":["2.41-12+deb13u4"],"available":[{"date":"2026-09-13","kind":"first-observed","version":"2.41-12+deb13u4"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","metrics":{"baseScore":7.5,"impactScore":3.6,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-5928","cwe":"CWE-127","type":"Secondary","source":"3ff69d7a-14f2-4f67-a097-88dee7810d18"}],"epss":[{"cve":"CVE-2026-5928","date":"2026-10-27","epss":0.00369,"percentile":0.30617}],"risk":0.27675,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-5928","description":"Calling the ungetwc function on a FILE stream with wide characters encoded in a character set that has overlaps between its single byte and multi-byte character encodings, in the GNU C Library version 2.43 or earlier, may result in an attempt to read bytes before an allocated buffer, potentially resulting in unintentional disclosure of neighboring data in the heap, or a program crash.  A bug in the wide character pushback implementation (_IO_wdefault_pbackfail in libio/wgenops.c) causes ungetwc() to operate on the regular character buffer (fp->_IO_read_ptr) instead of the actual wide-stream read pointer (fp->_wide_data->_IO_read_ptr). The program crash may happen in cases where fp->_IO_read_ptr is not initialized and hence points to NULL. The buffer under-read requires a special situation where the input character encoding is such that there are overlaps between single byte representations and multibyte representations in that encoding, resulting in spurious matches. 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The program crash may happen in cases where fp->_IO_read_ptr is not initialized and hence points to NULL. The buffer under-read requires a special situation where the input character encoding is such that there are overlaps between single byte representations and multibyte representations in that encoding, resulting in spurious matches. 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Remote peers may send more bytes as long as they fit within the stream flow control limits.  Impact summary: A malicious remote peer may exploit the lack of connection flow control for streams to make the QUIC stack receive ~100MB of memory instead of 768 KiB (default flow control window size).  CWE: CWE-770: Allocation of Resources Without Limits or Throttling  Description: The local QUIC stack advertises two flow control limits to its remote peer: stream flow control limit and connection flow control limit. The remote peer must follow both limits when transmitting stream data.  Whenever the local QUIC stack receives a stream frame, it validates that the size of the received stream frame stays within flow control limits. If either limit is exceeded (stream level or connection level), then the QUIC stack must close the connection with a flow control error.  The vulnerable OpenSSL QUIC stack enforces the stream-level but not the connection-level limit. To exploit the issue, three conditions must be met:   - the remote peer opens several streams   - each stream must stay within the stream-level flow control limit   - there must be no zero-offset byte sent on any of the streams     (to prevent the vulnerable QUIC stack from consuming data). By meeting the conditions above, the remote peer may make the local stack allocate 2 x MAX_STREAMS x (stream flow control limit) bytes of memory. MAX_STREAMS defaults to 100, and the limit applies to both bidirectional and unidirectional streams, making it 200 in total. The default flow control window for a stream is 512kB. The remote peer may force the vulnerable QUIC stack to allocate 100MB of heap per connection.  FIPS impact: no The FIPS module is not affected as the QUIC implementation is outside of the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-75804","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75804","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75804","date":"2026-10-27","epss":0.00529,"percentile":0.44576}],"urls":["https://github.com/openssl/openssl/commit/2e8f54666b3fb7b05ff5f58aa6cac9285163654e","https://github.com/openssl/openssl/commit/4533ee8a5686c953ed3b644738ac4bdf20806538","https://github.com/openssl/openssl/commit/64d3102fb5b54311e92517f26ba00169d719e74a","https://github.com/openssl/openssl/commit/f9eaecf5bdd6692da052bc65b0332af2a938ac03","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-75804","description":"Issue summary: OpenSSL QUIC stack does not enforce connection\nlevel flow control for streams. Remote peers may send more bytes\nas long as they fit within the stream flow control limits.\n\nImpact summary: A malicious remote peer may exploit the lack of connection\nflow control for streams to make the QUIC stack receive ~100MB of memory\ninstead of 768 KiB (default flow control window size).\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: The local QUIC stack advertises two flow control limits\nto its remote peer: stream flow control limit and connection flow\ncontrol limit. The remote peer must follow both limits when transmitting\nstream data.\n\nWhenever the local QUIC stack receives a stream frame, it validates\nthat the size of the received stream frame stays within flow control limits.\nIf either limit is exceeded (stream level or connection level), then\nthe QUIC stack must close the connection with a flow control error.\n\nThe vulnerable OpenSSL QUIC stack enforces the stream-level but not\nthe connection-level limit. To exploit the issue, three conditions must be met:\n  - the remote peer opens several streams\n  - each stream must stay within the stream-level flow control limit\n  - there must be no zero-offset byte sent on any of the streams\n    (to prevent the vulnerable QUIC stack from consuming data).\nBy meeting the conditions above, the remote peer may make the local stack\nallocate 2 x MAX_STREAMS x (stream flow control limit) bytes\nof memory. MAX_STREAMS defaults to 100, and the limit applies to both\nbidirectional and unidirectional streams, making it 200 in total. The default\nflow control window for a stream is 512kB. The remote peer may\nforce the vulnerable QUIC stack to allocate 100MB of heap per connection.\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-75804","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-75804","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75804","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75804","date":"2026-10-27","epss":0.00529,"percentile":0.44576}],"risk":0.27243500000000004,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-75804","description":"Issue summary: OpenSSL QUIC stack does not enforce connection level flow control for streams. Remote peers may send more bytes as long as they fit within the stream flow control limits.  Impact summary: A malicious remote peer may exploit the lack of connection flow control for streams to make the QUIC stack receive ~100MB of memory instead of 768 KiB (default flow control window size).  CWE: CWE-770: Allocation of Resources Without Limits or Throttling  Description: The local QUIC stack advertises two flow control limits to its remote peer: stream flow control limit and connection flow control limit. The remote peer must follow both limits when transmitting stream data.  Whenever the local QUIC stack receives a stream frame, it validates that the size of the received stream frame stays within flow control limits. If either limit is exceeded (stream level or connection level), then the QUIC stack must close the connection with a flow control error.  The vulnerable OpenSSL QUIC stack enforces the stream-level but not the connection-level limit. To exploit the issue, three conditions must be met:   - the remote peer opens several streams   - each stream must stay within the stream-level flow control limit   - there must be no zero-offset byte sent on any of the streams     (to prevent the vulnerable QUIC stack from consuming data). By meeting the conditions above, the remote peer may make the local stack allocate 2 x MAX_STREAMS x (stream flow control limit) bytes of memory. MAX_STREAMS defaults to 100, and the limit applies to both bidirectional and unidirectional streams, making it 200 in total. The default flow control window for a stream is 512kB. The remote peer may force the vulnerable QUIC stack to allocate 100MB of heap per connection.  FIPS impact: no The FIPS module is not affected as the QUIC implementation is outside of the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-75804","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75804","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75804","date":"2026-10-27","epss":0.00529,"percentile":0.44576}],"urls":["https://github.com/openssl/openssl/commit/2e8f54666b3fb7b05ff5f58aa6cac9285163654e","https://github.com/openssl/openssl/commit/4533ee8a5686c953ed3b644738ac4bdf20806538","https://github.com/openssl/openssl/commit/64d3102fb5b54311e92517f26ba00169d719e74a","https://github.com/openssl/openssl/commit/f9eaecf5bdd6692da052bc65b0332af2a938ac03","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-75804","description":"Issue summary: OpenSSL QUIC stack does not enforce connection\nlevel flow control for streams. Remote peers may send more bytes\nas long as they fit within the stream flow control limits.\n\nImpact summary: A malicious remote peer may exploit the lack of connection\nflow control for streams to make the QUIC stack receive ~100MB of memory\ninstead of 768 KiB (default flow control window size).\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: The local QUIC stack advertises two flow control limits\nto its remote peer: stream flow control limit and connection flow\ncontrol limit. The remote peer must follow both limits when transmitting\nstream data.\n\nWhenever the local QUIC stack receives a stream frame, it validates\nthat the size of the received stream frame stays within flow control limits.\nIf either limit is exceeded (stream level or connection level), then\nthe QUIC stack must close the connection with a flow control error.\n\nThe vulnerable OpenSSL QUIC stack enforces the stream-level but not\nthe connection-level limit. To exploit the issue, three conditions must be met:\n  - the remote peer opens several streams\n  - each stream must stay within the stream-level flow control limit\n  - there must be no zero-offset byte sent on any of the streams\n    (to prevent the vulnerable QUIC stack from consuming data).\nBy meeting the conditions above, the remote peer may make the local stack\nallocate 2 x MAX_STREAMS x (stream flow control limit) bytes\nof memory. MAX_STREAMS defaults to 100, and the limit applies to both\nbidirectional and unidirectional streams, making it 200 in total. The default\nflow control window for a stream is 512kB. The remote peer may\nforce the vulnerable QUIC stack to allocate 100MB of heap per connection.\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-75804","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-75804","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75804","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75804","date":"2026-10-27","epss":0.00529,"percentile":0.44576}],"risk":0.27243500000000004,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-75804","description":"Issue summary: OpenSSL QUIC stack does not enforce connection level flow control for streams. Remote peers may send more bytes as long as they fit within the stream flow control limits.  Impact summary: A malicious remote peer may exploit the lack of connection flow control for streams to make the QUIC stack receive ~100MB of memory instead of 768 KiB (default flow control window size).  CWE: CWE-770: Allocation of Resources Without Limits or Throttling  Description: The local QUIC stack advertises two flow control limits to its remote peer: stream flow control limit and connection flow control limit. The remote peer must follow both limits when transmitting stream data.  Whenever the local QUIC stack receives a stream frame, it validates that the size of the received stream frame stays within flow control limits. If either limit is exceeded (stream level or connection level), then the QUIC stack must close the connection with a flow control error.  The vulnerable OpenSSL QUIC stack enforces the stream-level but not the connection-level limit. To exploit the issue, three conditions must be met:   - the remote peer opens several streams   - each stream must stay within the stream-level flow control limit   - there must be no zero-offset byte sent on any of the streams     (to prevent the vulnerable QUIC stack from consuming data). By meeting the conditions above, the remote peer may make the local stack allocate 2 x MAX_STREAMS x (stream flow control limit) bytes of memory. MAX_STREAMS defaults to 100, and the limit applies to both bidirectional and unidirectional streams, making it 200 in total. The default flow control window for a stream is 512kB. The remote peer may force the vulnerable QUIC stack to allocate 100MB of heap per connection.  FIPS impact: no The FIPS module is not affected as the QUIC implementation is outside of the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-75804","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75804","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75804","date":"2026-10-27","epss":0.00529,"percentile":0.44576}],"urls":["https://github.com/openssl/openssl/commit/2e8f54666b3fb7b05ff5f58aa6cac9285163654e","https://github.com/openssl/openssl/commit/4533ee8a5686c953ed3b644738ac4bdf20806538","https://github.com/openssl/openssl/commit/64d3102fb5b54311e92517f26ba00169d719e74a","https://github.com/openssl/openssl/commit/f9eaecf5bdd6692da052bc65b0332af2a938ac03","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-75804","description":"Issue summary: OpenSSL QUIC stack does not enforce connection\nlevel flow control for streams. Remote peers may send more bytes\nas long as they fit within the stream flow control limits.\n\nImpact summary: A malicious remote peer may exploit the lack of connection\nflow control for streams to make the QUIC stack receive ~100MB of memory\ninstead of 768 KiB (default flow control window size).\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: The local QUIC stack advertises two flow control limits\nto its remote peer: stream flow control limit and connection flow\ncontrol limit. The remote peer must follow both limits when transmitting\nstream data.\n\nWhenever the local QUIC stack receives a stream frame, it validates\nthat the size of the received stream frame stays within flow control limits.\nIf either limit is exceeded (stream level or connection level), then\nthe QUIC stack must close the connection with a flow control error.\n\nThe vulnerable OpenSSL QUIC stack enforces the stream-level but not\nthe connection-level limit. To exploit the issue, three conditions must be met:\n  - the remote peer opens several streams\n  - each stream must stay within the stream-level flow control limit\n  - there must be no zero-offset byte sent on any of the streams\n    (to prevent the vulnerable QUIC stack from consuming data).\nBy meeting the conditions above, the remote peer may make the local stack\nallocate 2 x MAX_STREAMS x (stream flow control limit) bytes\nof memory. MAX_STREAMS defaults to 100, and the limit applies to both\nbidirectional and unidirectional streams, making it 200 in total. The default\nflow control window for a stream is 512kB. The remote peer may\nforce the vulnerable QUIC stack to allocate 100MB of heap per connection.\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-75804","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-75804","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75804","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75804","date":"2026-10-27","epss":0.00529,"percentile":0.44576}],"risk":0.27243500000000004,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-75804","description":"Issue summary: OpenSSL QUIC stack does not enforce connection level flow control for streams. Remote peers may send more bytes as long as they fit within the stream flow control limits.  Impact summary: A malicious remote peer may exploit the lack of connection flow control for streams to make the QUIC stack receive ~100MB of memory instead of 768 KiB (default flow control window size).  CWE: CWE-770: Allocation of Resources Without Limits or Throttling  Description: The local QUIC stack advertises two flow control limits to its remote peer: stream flow control limit and connection flow control limit. The remote peer must follow both limits when transmitting stream data.  Whenever the local QUIC stack receives a stream frame, it validates that the size of the received stream frame stays within flow control limits. If either limit is exceeded (stream level or connection level), then the QUIC stack must close the connection with a flow control error.  The vulnerable OpenSSL QUIC stack enforces the stream-level but not the connection-level limit. To exploit the issue, three conditions must be met:   - the remote peer opens several streams   - each stream must stay within the stream-level flow control limit   - there must be no zero-offset byte sent on any of the streams     (to prevent the vulnerable QUIC stack from consuming data). By meeting the conditions above, the remote peer may make the local stack allocate 2 x MAX_STREAMS x (stream flow control limit) bytes of memory. MAX_STREAMS defaults to 100, and the limit applies to both bidirectional and unidirectional streams, making it 200 in total. The default flow control window for a stream is 512kB. The remote peer may force the vulnerable QUIC stack to allocate 100MB of heap per connection.  FIPS impact: no The FIPS module is not affected as the QUIC implementation is outside of the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-75804","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75804","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75804","date":"2026-10-27","epss":0.00529,"percentile":0.44576}],"urls":["https://github.com/openssl/openssl/commit/2e8f54666b3fb7b05ff5f58aa6cac9285163654e","https://github.com/openssl/openssl/commit/4533ee8a5686c953ed3b644738ac4bdf20806538","https://github.com/openssl/openssl/commit/64d3102fb5b54311e92517f26ba00169d719e74a","https://github.com/openssl/openssl/commit/f9eaecf5bdd6692da052bc65b0332af2a938ac03","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-75804","description":"Issue summary: OpenSSL QUIC stack does not enforce connection\nlevel flow control for streams. Remote peers may send more bytes\nas long as they fit within the stream flow control limits.\n\nImpact summary: A malicious remote peer may exploit the lack of connection\nflow control for streams to make the QUIC stack receive ~100MB of memory\ninstead of 768 KiB (default flow control window size).\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: The local QUIC stack advertises two flow control limits\nto its remote peer: stream flow control limit and connection flow\ncontrol limit. The remote peer must follow both limits when transmitting\nstream data.\n\nWhenever the local QUIC stack receives a stream frame, it validates\nthat the size of the received stream frame stays within flow control limits.\nIf either limit is exceeded (stream level or connection level), then\nthe QUIC stack must close the connection with a flow control error.\n\nThe vulnerable OpenSSL QUIC stack enforces the stream-level but not\nthe connection-level limit. To exploit the issue, three conditions must be met:\n  - the remote peer opens several streams\n  - each stream must stay within the stream-level flow control limit\n  - there must be no zero-offset byte sent on any of the streams\n    (to prevent the vulnerable QUIC stack from consuming data).\nBy meeting the conditions above, the remote peer may make the local stack\nallocate 2 x MAX_STREAMS x (stream flow control limit) bytes\nof memory. MAX_STREAMS defaults to 100, and the limit applies to both\nbidirectional and unidirectional streams, making it 200 in total. The default\nflow control window for a stream is 512kB. The remote peer may\nforce the vulnerable QUIC stack to allocate 100MB of heap per connection.\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-42768","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-42768","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-10","kind":"first-observed","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42768","cwe":"CWE-514","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42768","date":"2026-10-27","epss":0.00801,"percentile":0.56432}],"risk":0.268335,"urls":[],"severity":"Low","namespace":"debian:distro:debian:13","advisories":[],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-42768","description":"Issue summary: The CMS_decrypt and PKCS7_decrypt functions are vulnerable to Bleichenbacher-style attack when an attacker is able to provide the CMS or S/MIME messages and observe the error code and/or decryption output.  Impact summary: The Bleichenbacher-style attack allows an attacker to use the victim's vulnerable application as a way to decrypt or sign messages with the victim's private RSA key.  The attack is possible in 2 variants.  1. The decryption API (CMS_decrypt(), PKCS7_decrypt()) is used without providing the recipient certificate. In this case OpenSSL iterates over every KeyTransRecipientInfo (KTRI) without stopping at the first success.  An attacker who authors a message with two KTRI entries — the first one wrapping a real CEK under the victim's public key, the second with an arbitrary probe ciphertext — obtains opportunity to iterate the 2nd KTRI to get a valid PKCS#1 v1.5 padding if the error code of the application is available.  That is a Bleichenbacher oracle (Bleichenbacher, CRYPTO '98): an adaptive-chosen-ciphertext side channel from which the attacker decrypts any RSA ciphertext to the victim's key or forges any PKCS#1 v1.5 signature under it.  2. When the decryption API (CMS_decrypt(), PKCS7_decrypt()) is provided with the recipient certificate, and the recipient is not found, a random key is substituted.  An attacker who authors a message and is able to compare both error code and the result of the decryption, can mount a Bleichenbacher oracle.  We are not aware of any applications that provide a remote attacker an opportunity to mount an attack described in these scenarios. We consider the existence of such application very unlikely, and for this reason this CVE has been evaluated as Low severity.  To avoid these attacks, when RSA PKCS#1 v1.5 Key Transport is in use, the invoked EVP_PKEY_decrypt() will use the implicit rejection mechanism described in draft-irtf-cfrg-rsa-guidance. In previous OpenSSL releases the implicit rejection was explicitly disabled.  The implicit rejection mechanism always returns a plaintext value, the symmetric key. This result is deterministic for the ciphertext and the private key.  The length of the decryption result can happen to match the length of the key of the symmetric cipher that was used for the content encryption. When a certificate is not provided, the last RecipientInfo producing a key that looks valid will be used. It may cause getting garbage content on decryption. As a proper way to deal with this a recipient certificate has to be provided to identify the particular RecipientInfo for decryption.  The FIPS modules in 4.0, 3.6, 3.5, and 3.4 are not affected by this issue, as CMS and S/MIME processing happens outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-42768","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42768","cwe":"CWE-514","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42768","date":"2026-10-27","epss":0.00801,"percentile":0.56432}],"urls":["https://github.com/openssl/openssl/commit/a2ca7b2d73e0ffc1eae183fe6e1741dac767cb4f","https://github.com/openssl/openssl/commit/bbb151a83041705d9d001ed2f9c12f5523e1b54d","https://github.com/openssl/openssl/commit/dd68364107a58841c0a2546812518b65d3a23abd","https://github.com/openssl/openssl/commit/f04b377be3d821741c86d1f4bf84dee09f3d5c3e","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"Low","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-42768","description":"Issue summary: The CMS_decrypt and PKCS7_decrypt functions are vulnerable to\nBleichenbacher-style attack when an attacker is able to provide the CMS or\nS/MIME messages and observe the error code and/or decryption output.\n\nImpact summary: The Bleichenbacher-style attack allows an attacker to use the\nvictim's vulnerable application as a way to decrypt or sign messages with the\nvictim's private RSA key.\n\nThe attack is possible in 2 variants.\n\n1. The decryption API (CMS_decrypt(), PKCS7_decrypt()) is used without\nproviding the recipient certificate. In this case OpenSSL iterates over every\nKeyTransRecipientInfo (KTRI) without stopping at the first success.\n\nAn attacker who authors a message with two KTRI entries — the first one\nwrapping a real CEK under the victim's public key, the second with an\narbitrary probe ciphertext — obtains opportunity to iterate the 2nd KTRI to\nget a valid PKCS#1 v1.5 padding if the error code of the application is\navailable.\n\nThat is a Bleichenbacher oracle (Bleichenbacher, CRYPTO '98): an\nadaptive-chosen-ciphertext side channel from which the attacker decrypts any\nRSA ciphertext to the victim's key or forges any PKCS#1 v1.5 signature under\nit.\n\n2. When the decryption API (CMS_decrypt(), PKCS7_decrypt()) is provided with\nthe recipient certificate, and the recipient is not found, a random\nkey is substituted.\n\nAn attacker who authors a message and is able to compare both error code and\nthe result of the decryption, can mount a Bleichenbacher oracle.\n\nWe are not aware of any applications that provide a remote attacker\nan opportunity to mount an attack described in these scenarios. We consider\nthe existence of such application very unlikely, and for this reason this\nCVE has been evaluated as Low severity.\n\nTo avoid these attacks, when RSA PKCS#1 v1.5 Key Transport is in use, the\ninvoked EVP_PKEY_decrypt() will use the implicit rejection mechanism described\nin draft-irtf-cfrg-rsa-guidance. In previous OpenSSL releases the implicit\nrejection was explicitly disabled.\n\nThe implicit rejection mechanism always returns a plaintext value,\nthe symmetric key. This result is deterministic for the ciphertext and the\nprivate key.  The length of the decryption result can happen to match the\nlength of the key of the symmetric cipher that was used for the content\nencryption. When a certificate is not provided, the last RecipientInfo\nproducing a key that looks valid will be used. It may cause getting garbage\ncontent on decryption. As a proper way to deal with this a recipient\ncertificate has to be provided to identify the particular RecipientInfo for\ndecryption.\n\nThe FIPS modules in 4.0, 3.6, 3.5, and 3.4 are not affected by this issue, as\nCMS and S/MIME processing happens outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-42768","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-42768","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-10","kind":"first-observed","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42768","cwe":"CWE-514","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42768","date":"2026-10-27","epss":0.00801,"percentile":0.56432}],"risk":0.268335,"urls":[],"severity":"Low","namespace":"debian:distro:debian:13","advisories":[],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-42768","description":"Issue summary: The CMS_decrypt and PKCS7_decrypt functions are vulnerable to Bleichenbacher-style attack when an attacker is able to provide the CMS or S/MIME messages and observe the error code and/or decryption output.  Impact summary: The Bleichenbacher-style attack allows an attacker to use the victim's vulnerable application as a way to decrypt or sign messages with the victim's private RSA key.  The attack is possible in 2 variants.  1. The decryption API (CMS_decrypt(), PKCS7_decrypt()) is used without providing the recipient certificate. In this case OpenSSL iterates over every KeyTransRecipientInfo (KTRI) without stopping at the first success.  An attacker who authors a message with two KTRI entries — the first one wrapping a real CEK under the victim's public key, the second with an arbitrary probe ciphertext — obtains opportunity to iterate the 2nd KTRI to get a valid PKCS#1 v1.5 padding if the error code of the application is available.  That is a Bleichenbacher oracle (Bleichenbacher, CRYPTO '98): an adaptive-chosen-ciphertext side channel from which the attacker decrypts any RSA ciphertext to the victim's key or forges any PKCS#1 v1.5 signature under it.  2. When the decryption API (CMS_decrypt(), PKCS7_decrypt()) is provided with the recipient certificate, and the recipient is not found, a random key is substituted.  An attacker who authors a message and is able to compare both error code and the result of the decryption, can mount a Bleichenbacher oracle.  We are not aware of any applications that provide a remote attacker an opportunity to mount an attack described in these scenarios. We consider the existence of such application very unlikely, and for this reason this CVE has been evaluated as Low severity.  To avoid these attacks, when RSA PKCS#1 v1.5 Key Transport is in use, the invoked EVP_PKEY_decrypt() will use the implicit rejection mechanism described in draft-irtf-cfrg-rsa-guidance. In previous OpenSSL releases the implicit rejection was explicitly disabled.  The implicit rejection mechanism always returns a plaintext value, the symmetric key. This result is deterministic for the ciphertext and the private key.  The length of the decryption result can happen to match the length of the key of the symmetric cipher that was used for the content encryption. When a certificate is not provided, the last RecipientInfo producing a key that looks valid will be used. It may cause getting garbage content on decryption. As a proper way to deal with this a recipient certificate has to be provided to identify the particular RecipientInfo for decryption.  The FIPS modules in 4.0, 3.6, 3.5, and 3.4 are not affected by this issue, as CMS and S/MIME processing happens outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-42768","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42768","cwe":"CWE-514","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42768","date":"2026-10-27","epss":0.00801,"percentile":0.56432}],"urls":["https://github.com/openssl/openssl/commit/a2ca7b2d73e0ffc1eae183fe6e1741dac767cb4f","https://github.com/openssl/openssl/commit/bbb151a83041705d9d001ed2f9c12f5523e1b54d","https://github.com/openssl/openssl/commit/dd68364107a58841c0a2546812518b65d3a23abd","https://github.com/openssl/openssl/commit/f04b377be3d821741c86d1f4bf84dee09f3d5c3e","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"Low","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-42768","description":"Issue summary: The CMS_decrypt and PKCS7_decrypt functions are vulnerable to\nBleichenbacher-style attack when an attacker is able to provide the CMS or\nS/MIME messages and observe the error code and/or decryption output.\n\nImpact summary: The Bleichenbacher-style attack allows an attacker to use the\nvictim's vulnerable application as a way to decrypt or sign messages with the\nvictim's private RSA key.\n\nThe attack is possible in 2 variants.\n\n1. The decryption API (CMS_decrypt(), PKCS7_decrypt()) is used without\nproviding the recipient certificate. In this case OpenSSL iterates over every\nKeyTransRecipientInfo (KTRI) without stopping at the first success.\n\nAn attacker who authors a message with two KTRI entries — the first one\nwrapping a real CEK under the victim's public key, the second with an\narbitrary probe ciphertext — obtains opportunity to iterate the 2nd KTRI to\nget a valid PKCS#1 v1.5 padding if the error code of the application is\navailable.\n\nThat is a Bleichenbacher oracle (Bleichenbacher, CRYPTO '98): an\nadaptive-chosen-ciphertext side channel from which the attacker decrypts any\nRSA ciphertext to the victim's key or forges any PKCS#1 v1.5 signature under\nit.\n\n2. When the decryption API (CMS_decrypt(), PKCS7_decrypt()) is provided with\nthe recipient certificate, and the recipient is not found, a random\nkey is substituted.\n\nAn attacker who authors a message and is able to compare both error code and\nthe result of the decryption, can mount a Bleichenbacher oracle.\n\nWe are not aware of any applications that provide a remote attacker\nan opportunity to mount an attack described in these scenarios. We consider\nthe existence of such application very unlikely, and for this reason this\nCVE has been evaluated as Low severity.\n\nTo avoid these attacks, when RSA PKCS#1 v1.5 Key Transport is in use, the\ninvoked EVP_PKEY_decrypt() will use the implicit rejection mechanism described\nin draft-irtf-cfrg-rsa-guidance. In previous OpenSSL releases the implicit\nrejection was explicitly disabled.\n\nThe implicit rejection mechanism always returns a plaintext value,\nthe symmetric key. This result is deterministic for the ciphertext and the\nprivate key.  The length of the decryption result can happen to match the\nlength of the key of the symmetric cipher that was used for the content\nencryption. When a certificate is not provided, the last RecipientInfo\nproducing a key that looks valid will be used. It may cause getting garbage\ncontent on decryption. As a proper way to deal with this a recipient\ncertificate has to be provided to identify the particular RecipientInfo for\ndecryption.\n\nThe FIPS modules in 4.0, 3.6, 3.5, and 3.4 are not affected by this issue, as\nCMS and S/MIME processing happens outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-42768","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-42768","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-10","kind":"first-observed","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42768","cwe":"CWE-514","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42768","date":"2026-10-27","epss":0.00801,"percentile":0.56432}],"risk":0.268335,"urls":[],"severity":"Low","namespace":"debian:distro:debian:13","advisories":[],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-42768","description":"Issue summary: The CMS_decrypt and PKCS7_decrypt functions are vulnerable to Bleichenbacher-style attack when an attacker is able to provide the CMS or S/MIME messages and observe the error code and/or decryption output.  Impact summary: The Bleichenbacher-style attack allows an attacker to use the victim's vulnerable application as a way to decrypt or sign messages with the victim's private RSA key.  The attack is possible in 2 variants.  1. The decryption API (CMS_decrypt(), PKCS7_decrypt()) is used without providing the recipient certificate. In this case OpenSSL iterates over every KeyTransRecipientInfo (KTRI) without stopping at the first success.  An attacker who authors a message with two KTRI entries — the first one wrapping a real CEK under the victim's public key, the second with an arbitrary probe ciphertext — obtains opportunity to iterate the 2nd KTRI to get a valid PKCS#1 v1.5 padding if the error code of the application is available.  That is a Bleichenbacher oracle (Bleichenbacher, CRYPTO '98): an adaptive-chosen-ciphertext side channel from which the attacker decrypts any RSA ciphertext to the victim's key or forges any PKCS#1 v1.5 signature under it.  2. When the decryption API (CMS_decrypt(), PKCS7_decrypt()) is provided with the recipient certificate, and the recipient is not found, a random key is substituted.  An attacker who authors a message and is able to compare both error code and the result of the decryption, can mount a Bleichenbacher oracle.  We are not aware of any applications that provide a remote attacker an opportunity to mount an attack described in these scenarios. We consider the existence of such application very unlikely, and for this reason this CVE has been evaluated as Low severity.  To avoid these attacks, when RSA PKCS#1 v1.5 Key Transport is in use, the invoked EVP_PKEY_decrypt() will use the implicit rejection mechanism described in draft-irtf-cfrg-rsa-guidance. In previous OpenSSL releases the implicit rejection was explicitly disabled.  The implicit rejection mechanism always returns a plaintext value, the symmetric key. This result is deterministic for the ciphertext and the private key.  The length of the decryption result can happen to match the length of the key of the symmetric cipher that was used for the content encryption. When a certificate is not provided, the last RecipientInfo producing a key that looks valid will be used. It may cause getting garbage content on decryption. As a proper way to deal with this a recipient certificate has to be provided to identify the particular RecipientInfo for decryption.  The FIPS modules in 4.0, 3.6, 3.5, and 3.4 are not affected by this issue, as CMS and S/MIME processing happens outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-42768","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42768","cwe":"CWE-514","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42768","date":"2026-10-27","epss":0.00801,"percentile":0.56432}],"urls":["https://github.com/openssl/openssl/commit/a2ca7b2d73e0ffc1eae183fe6e1741dac767cb4f","https://github.com/openssl/openssl/commit/bbb151a83041705d9d001ed2f9c12f5523e1b54d","https://github.com/openssl/openssl/commit/dd68364107a58841c0a2546812518b65d3a23abd","https://github.com/openssl/openssl/commit/f04b377be3d821741c86d1f4bf84dee09f3d5c3e","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"Low","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-42768","description":"Issue summary: The CMS_decrypt and PKCS7_decrypt functions are vulnerable to\nBleichenbacher-style attack when an attacker is able to provide the CMS or\nS/MIME messages and observe the error code and/or decryption output.\n\nImpact summary: The Bleichenbacher-style attack allows an attacker to use the\nvictim's vulnerable application as a way to decrypt or sign messages with the\nvictim's private RSA key.\n\nThe attack is possible in 2 variants.\n\n1. The decryption API (CMS_decrypt(), PKCS7_decrypt()) is used without\nproviding the recipient certificate. In this case OpenSSL iterates over every\nKeyTransRecipientInfo (KTRI) without stopping at the first success.\n\nAn attacker who authors a message with two KTRI entries — the first one\nwrapping a real CEK under the victim's public key, the second with an\narbitrary probe ciphertext — obtains opportunity to iterate the 2nd KTRI to\nget a valid PKCS#1 v1.5 padding if the error code of the application is\navailable.\n\nThat is a Bleichenbacher oracle (Bleichenbacher, CRYPTO '98): an\nadaptive-chosen-ciphertext side channel from which the attacker decrypts any\nRSA ciphertext to the victim's key or forges any PKCS#1 v1.5 signature under\nit.\n\n2. When the decryption API (CMS_decrypt(), PKCS7_decrypt()) is provided with\nthe recipient certificate, and the recipient is not found, a random\nkey is substituted.\n\nAn attacker who authors a message and is able to compare both error code and\nthe result of the decryption, can mount a Bleichenbacher oracle.\n\nWe are not aware of any applications that provide a remote attacker\nan opportunity to mount an attack described in these scenarios. We consider\nthe existence of such application very unlikely, and for this reason this\nCVE has been evaluated as Low severity.\n\nTo avoid these attacks, when RSA PKCS#1 v1.5 Key Transport is in use, the\ninvoked EVP_PKEY_decrypt() will use the implicit rejection mechanism described\nin draft-irtf-cfrg-rsa-guidance. In previous OpenSSL releases the implicit\nrejection was explicitly disabled.\n\nThe implicit rejection mechanism always returns a plaintext value,\nthe symmetric key. This result is deterministic for the ciphertext and the\nprivate key.  The length of the decryption result can happen to match the\nlength of the key of the symmetric cipher that was used for the content\nencryption. When a certificate is not provided, the last RecipientInfo\nproducing a key that looks valid will be used. It may cause getting garbage\ncontent on decryption. 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Impact summary: The Bleichenbacher-style attack allows an attacker to use the victim's vulnerable application as a way to decrypt or sign messages with the victim's private RSA key.  The attack is possible in 2 variants.  1. The decryption API (CMS_decrypt(), PKCS7_decrypt()) is used without providing the recipient certificate. In this case OpenSSL iterates over every KeyTransRecipientInfo (KTRI) without stopping at the first success.  An attacker who authors a message with two KTRI entries — the first one wrapping a real CEK under the victim's public key, the second with an arbitrary probe ciphertext — obtains opportunity to iterate the 2nd KTRI to get a valid PKCS#1 v1.5 padding if the error code of the application is available.  That is a Bleichenbacher oracle (Bleichenbacher, CRYPTO '98): an adaptive-chosen-ciphertext side channel from which the attacker decrypts any RSA ciphertext to the victim's key or forges any PKCS#1 v1.5 signature under it.  2. When the decryption API (CMS_decrypt(), PKCS7_decrypt()) is provided with the recipient certificate, and the recipient is not found, a random key is substituted.  An attacker who authors a message and is able to compare both error code and the result of the decryption, can mount a Bleichenbacher oracle.  We are not aware of any applications that provide a remote attacker an opportunity to mount an attack described in these scenarios. We consider the existence of such application very unlikely, and for this reason this CVE has been evaluated as Low severity.  To avoid these attacks, when RSA PKCS#1 v1.5 Key Transport is in use, the invoked EVP_PKEY_decrypt() will use the implicit rejection mechanism described in draft-irtf-cfrg-rsa-guidance. In previous OpenSSL releases the implicit rejection was explicitly disabled.  The implicit rejection mechanism always returns a plaintext value, the symmetric key. This result is deterministic for the ciphertext and the private key.  The length of the decryption result can happen to match the length of the key of the symmetric cipher that was used for the content encryption. When a certificate is not provided, the last RecipientInfo producing a key that looks valid will be used. It may cause getting garbage content on decryption. As a proper way to deal with this a recipient certificate has to be provided to identify the particular RecipientInfo for decryption.  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The decryption API (CMS_decrypt(), PKCS7_decrypt()) is used without\nproviding the recipient certificate. In this case OpenSSL iterates over every\nKeyTransRecipientInfo (KTRI) without stopping at the first success.\n\nAn attacker who authors a message with two KTRI entries — the first one\nwrapping a real CEK under the victim's public key, the second with an\narbitrary probe ciphertext — obtains opportunity to iterate the 2nd KTRI to\nget a valid PKCS#1 v1.5 padding if the error code of the application is\navailable.\n\nThat is a Bleichenbacher oracle (Bleichenbacher, CRYPTO '98): an\nadaptive-chosen-ciphertext side channel from which the attacker decrypts any\nRSA ciphertext to the victim's key or forges any PKCS#1 v1.5 signature under\nit.\n\n2. 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This result is deterministic for the ciphertext and the\nprivate key.  The length of the decryption result can happen to match the\nlength of the key of the symmetric cipher that was used for the content\nencryption. When a certificate is not provided, the last RecipientInfo\nproducing a key that looks valid will be used. It may cause getting garbage\ncontent on decryption. As a proper way to deal with this a recipient\ncertificate has to be provided to identify the particular RecipientInfo for\ndecryption.\n\nThe FIPS modules in 4.0, 3.6, 3.5, and 3.4 are not affected by this issue, as\nCMS and S/MIME processing happens outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"6a8df2b8be8e0ee6","cpes":["cpe:2.3:a:liblzma5:liblzma5:5.8.1-1:*:*:*:*:*:*:*"],"name":"liblzma5","purl":"pkg:deb/debian/liblzma5@5.8.1-1?arch=amd64&distro=debian-13.4&upstream=xz-utils","type":"deb","version":"5.8.1-1","language":"","licenses":["0BSD","FSFUL","FSFULLR","GPL-2","GPL-2+","GPL-3","GPL-3.0-or-later-WITH-Autoconf-exception-macro","LGPL-2.1","LGPL-2.1+","PD","PD-debian","noderivs","permissive-nowarranty"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/liblzma5/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/liblzma5/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/liblzma5:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/liblzma5:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"xz-utils"}]},"matchDetails":[{"fix":{"suggestedVersion":"5.8.1-1+deb13u1"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-34743","versionConstraint":"< 5.8.1-1+deb13u1 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"xz-utils","version":"5.8.1-1"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-34743","fix":{"state":"fixed","versions":["5.8.1-1+deb13u1"],"available":[{"date":"2026-07-12","kind":"first-observed","version":"5.8.1-1+deb13u1"}]},"cvss":[{"type":"Primary","source":"nvd@nist.gov","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-34743","cwe":"CWE-122","type":"Secondary","source":"security-advisories@github.com"}],"epss":[{"cve":"CVE-2026-34743","date":"2026-10-27","epss":0.00514,"percentile":0.43625}],"risk":0.26471,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-34743","description":"XZ Utils provide a general-purpose data-compression library plus command-line tools. 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While it optimizes for append operations (at the end of\nthe list), it falls back to a head-to-tail linear search for any fragment\nthat does not immediately follow the current `tail`.\n\nBy manipulating the sequence of offsets, an attacker can force the server\nto perform O(n^2) operations, consuming excessive CPU time for the\nQUIC process.\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-42772","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-42772","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42772","cwe":"CWE-407","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42772","date":"2026-10-27","epss":0.00479,"percentile":0.41154}],"risk":0.24668500000000002,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-42772","description":"Issue summary: The QUIC stream reassembly algorithm performance deteriorates progressively as packets are arriving out of order. 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While it optimizes for append operations (at the end of\nthe list), it falls back to a head-to-tail linear search for any fragment\nthat does not immediately follow the current `tail`.\n\nBy manipulating the sequence of offsets, an attacker can force the server\nto perform O(n^2) operations, consuming excessive CPU time for the\nQUIC process.\n\nFIPS impact: no\nThe FIPS module is not affected as the QUIC implementation is outside of\nthe OpenSSL FIPS module boundary."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-35191","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-35191","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-35191","cwe":"CWE-440","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-35191","date":"2026-10-27","epss":0.00723,"percentile":0.53815}],"risk":0.24220499999999998,"urls":[],"severity":"Low","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-35191","description":"Issue summary: The OpenSSL QUIC server, when configured to not preform address validation, can be forced to count incoming packets multiple times in its unvalidated credit computation, leading to a violation of the RFC 9000 unvalidated connection amplification limit of 3 times the amount of data received.  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If this feature is disabled on the\nserver, the QUIC stack limits the amount of server data that can be sent to 3\ntimes the amount of data received from the peer address, until such time as the\nTLS handshake is completed.\n\nThe OpenSSL QUIC server, when operating in non-validation mode, adds the\nlength of the whole datagram received to the unvalidated credit limit when\nprocessing each QUIC packet in the datagram. A remote peer may,\nafter establishing a connection with an initial client hello frame, send a\nsubsequent datagram containing multiple QUIC packets, leading the server to\naccount the entire datagram length for each packet in the datagram, resulting\nin the server believing that the peer has sent more data than it actually has,\nthereby violating the 3x amplification limit mandated by the RFC.\n\nFIPS impact: no\nAs the QUIC stack lives outside the FIPS module boundary, no FIPS modules\nare affected by this CVE."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-35191","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-35191","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-35191","cwe":"CWE-440","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-35191","date":"2026-10-27","epss":0.00723,"percentile":0.53815}],"risk":0.24220499999999998,"urls":[],"severity":"Low","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-35191","description":"Issue summary: The OpenSSL QUIC server, when configured to not preform address validation, can be forced to count incoming packets multiple times in its unvalidated credit computation, leading to a violation of the RFC 9000 unvalidated connection amplification limit of 3 times the amount of data received.  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If this feature is disabled on the\nserver, the QUIC stack limits the amount of server data that can be sent to 3\ntimes the amount of data received from the peer address, until such time as the\nTLS handshake is completed.\n\nThe OpenSSL QUIC server, when operating in non-validation mode, adds the\nlength of the whole datagram received to the unvalidated credit limit when\nprocessing each QUIC packet in the datagram. A remote peer may,\nafter establishing a connection with an initial client hello frame, send a\nsubsequent datagram containing multiple QUIC packets, leading the server to\naccount the entire datagram length for each packet in the datagram, resulting\nin the server believing that the peer has sent more data than it actually has,\nthereby violating the 3x amplification limit mandated by the RFC.\n\nFIPS impact: no\nAs the QUIC stack lives outside the FIPS module boundary, no FIPS modules\nare affected by this CVE."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-35191","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-35191","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-35191","cwe":"CWE-440","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-35191","date":"2026-10-27","epss":0.00723,"percentile":0.53815}],"risk":0.24220499999999998,"urls":[],"severity":"Low","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-35191","description":"Issue summary: The OpenSSL QUIC server, when configured to not preform address validation, can be forced to count incoming packets multiple times in its unvalidated credit computation, leading to a violation of the RFC 9000 unvalidated connection amplification limit of 3 times the amount of data received.  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An attacker capable of triggering this operation can exploit this use-after-free condition, leading to a Denial of Service (DoS) via an application crash or potential memory corruption."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-75803","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-75803","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","metrics":{"baseScore":9.1,"impactScore":5.2,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75803","cwe":"CWE-354","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75803","date":"2026-10-27","epss":0.00254,"percentile":0.16854}],"risk":0.22987000000000002,"urls":[],"severity":"Critical","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-75803","description":"Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty ciphertext can report success without verifying the supplied authentication tag when the operation is finalized by calling the EVP_Cipher() function.  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FIPS impact: no The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this CVE as the affected algorithms are not FIPS approved and thus not implemented in the FIPS module."},"relatedVulnerabilities":[{"id":"CVE-2026-75803","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","metrics":{"baseScore":9.1,"impactScore":5.2,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75803","cwe":"CWE-354","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75803","date":"2026-10-27","epss":0.00254,"percentile":0.16854}],"urls":["https://github.com/openssl/openssl/commit/119ab9555dc62275bbd71f6f49529b1a44feba42","https://github.com/openssl/openssl/commit/3621257986e27e540bf96a11570929a6e5a9e05b","https://github.com/openssl/openssl/commit/6c7aa6f8f6449b7fe0137ee8be65fcd239bd7d6a","https://github.com/openssl/openssl/commit/bdeb0cd994d915342787f117ee75044f0dc36f34","https://github.com/openssl/openssl/commit/bf95f5f772e9362f87b25cfa2f8cb15d984865b9","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"Critical","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-75803","description":"Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty\nciphertext can report success without verifying the supplied authentication\ntag when the operation is finalized by calling the EVP_Cipher() function.\n\nImpact summary: Applications calling EVP_Cipher() on an empty ciphertext and\nexpecting the call to check the AEAD tag may accept forged messages.\n\nCWE: CWE-354 (Improper Validation of Integrity Check Value)\n\nDescription: The EVP_Cipher() API call for AEAD ciphers behaves like a one\nshot encryption and decryption call. It also verifies the AEAD tag after the\ndecryption operation. However for AES-OCB and ChaCha20-Poly1305 ciphers\nit skipped the AEAD tag verification when an empty ciphertext was passed to\nthe function. The callers of this function might believe that a successful\nreturn indicates a valid AEAD tag for these ciphers, even when that has not\ntruly been validated in this case.\n\nFIPS impact: no\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this CVE\nas the affected algorithms are not FIPS approved and thus not implemented\nin the FIPS module."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-75803","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-75803","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","metrics":{"baseScore":9.1,"impactScore":5.2,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75803","cwe":"CWE-354","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75803","date":"2026-10-27","epss":0.00254,"percentile":0.16854}],"risk":0.22987000000000002,"urls":[],"severity":"Critical","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-75803","description":"Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty ciphertext can report success without verifying the supplied authentication tag when the operation is finalized by calling the EVP_Cipher() function.  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FIPS impact: no The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this CVE as the affected algorithms are not FIPS approved and thus not implemented in the FIPS module."},"relatedVulnerabilities":[{"id":"CVE-2026-75803","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","metrics":{"baseScore":9.1,"impactScore":5.2,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75803","cwe":"CWE-354","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75803","date":"2026-10-27","epss":0.00254,"percentile":0.16854}],"urls":["https://github.com/openssl/openssl/commit/119ab9555dc62275bbd71f6f49529b1a44feba42","https://github.com/openssl/openssl/commit/3621257986e27e540bf96a11570929a6e5a9e05b","https://github.com/openssl/openssl/commit/6c7aa6f8f6449b7fe0137ee8be65fcd239bd7d6a","https://github.com/openssl/openssl/commit/bdeb0cd994d915342787f117ee75044f0dc36f34","https://github.com/openssl/openssl/commit/bf95f5f772e9362f87b25cfa2f8cb15d984865b9","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"Critical","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-75803","description":"Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty\nciphertext can report success without verifying the supplied authentication\ntag when the operation is finalized by calling the EVP_Cipher() function.\n\nImpact summary: Applications calling EVP_Cipher() on an empty ciphertext and\nexpecting the call to check the AEAD tag may accept forged messages.\n\nCWE: CWE-354 (Improper Validation of Integrity Check Value)\n\nDescription: The EVP_Cipher() API call for AEAD ciphers behaves like a one\nshot encryption and decryption call. It also verifies the AEAD tag after the\ndecryption operation. However for AES-OCB and ChaCha20-Poly1305 ciphers\nit skipped the AEAD tag verification when an empty ciphertext was passed to\nthe function. The callers of this function might believe that a successful\nreturn indicates a valid AEAD tag for these ciphers, even when that has not\ntruly been validated in this case.\n\nFIPS impact: no\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this CVE\nas the affected algorithms are not FIPS approved and thus not implemented\nin the FIPS module."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-75803","versionConstraint":"< 3.5.7-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-75803","fix":{"state":"fixed","versions":["3.5.7-1~deb13u2"],"available":[{"date":"2026-08-25","kind":"advisory","version":"3.5.7-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","metrics":{"baseScore":9.1,"impactScore":5.2,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75803","cwe":"CWE-354","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75803","date":"2026-10-27","epss":0.00254,"percentile":0.16854}],"risk":0.22987000000000002,"urls":[],"severity":"Critical","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6465-1","link":"https://security-tracker.debian.org/tracker/DSA-6465-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-75803","description":"Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty ciphertext can report success without verifying the supplied authentication tag when the operation is finalized by calling the EVP_Cipher() function.  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FIPS impact: no The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this CVE as the affected algorithms are not FIPS approved and thus not implemented in the FIPS module."},"relatedVulnerabilities":[{"id":"CVE-2026-75803","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","metrics":{"baseScore":9.1,"impactScore":5.2,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75803","cwe":"CWE-354","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75803","date":"2026-10-27","epss":0.00254,"percentile":0.16854}],"urls":["https://github.com/openssl/openssl/commit/119ab9555dc62275bbd71f6f49529b1a44feba42","https://github.com/openssl/openssl/commit/3621257986e27e540bf96a11570929a6e5a9e05b","https://github.com/openssl/openssl/commit/6c7aa6f8f6449b7fe0137ee8be65fcd239bd7d6a","https://github.com/openssl/openssl/commit/bdeb0cd994d915342787f117ee75044f0dc36f34","https://github.com/openssl/openssl/commit/bf95f5f772e9362f87b25cfa2f8cb15d984865b9","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"Critical","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-75803","description":"Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty\nciphertext can report success without verifying the supplied authentication\ntag when the operation is finalized by calling the EVP_Cipher() function.\n\nImpact summary: Applications calling EVP_Cipher() on an empty ciphertext and\nexpecting the call to check the AEAD tag may accept forged messages.\n\nCWE: CWE-354 (Improper Validation of Integrity Check Value)\n\nDescription: The EVP_Cipher() API call for AEAD ciphers behaves like a one\nshot encryption and decryption call. It also verifies the AEAD tag after the\ndecryption operation. However for AES-OCB and ChaCha20-Poly1305 ciphers\nit skipped the AEAD tag verification when an empty ciphertext was passed to\nthe function. 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Impact summary: Applications calling EVP_Cipher() on an empty ciphertext and expecting the call to check the AEAD tag may accept forged messages.  CWE: CWE-354 (Improper Validation of Integrity Check Value)  Description: The EVP_Cipher() API call for AEAD ciphers behaves like a one shot encryption and decryption call. It also verifies the AEAD tag after the decryption operation. However for AES-OCB and ChaCha20-Poly1305 ciphers it skipped the AEAD tag verification when an empty ciphertext was passed to the function. The callers of this function might believe that a successful return indicates a valid AEAD tag for these ciphers, even when that has not truly been validated in this case.  FIPS impact: no The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this CVE as the affected algorithms are not FIPS approved and thus not implemented in the FIPS module."},"relatedVulnerabilities":[{"id":"CVE-2026-75803","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","metrics":{"baseScore":9.1,"impactScore":5.2,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75803","cwe":"CWE-354","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75803","date":"2026-10-27","epss":0.00254,"percentile":0.16854}],"urls":["https://github.com/openssl/openssl/commit/119ab9555dc62275bbd71f6f49529b1a44feba42","https://github.com/openssl/openssl/commit/3621257986e27e540bf96a11570929a6e5a9e05b","https://github.com/openssl/openssl/commit/6c7aa6f8f6449b7fe0137ee8be65fcd239bd7d6a","https://github.com/openssl/openssl/commit/bdeb0cd994d915342787f117ee75044f0dc36f34","https://github.com/openssl/openssl/commit/bf95f5f772e9362f87b25cfa2f8cb15d984865b9","https://openssl-library.org/news/secadv/20260825.txt"],"severity":"Critical","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-75803","description":"Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty\nciphertext can report success without verifying the supplied authentication\ntag when the operation is finalized by calling the EVP_Cipher() function.\n\nImpact summary: Applications calling EVP_Cipher() on an empty ciphertext and\nexpecting the call to check the AEAD tag may accept forged messages.\n\nCWE: CWE-354 (Improper Validation of Integrity Check Value)\n\nDescription: The EVP_Cipher() API call for AEAD ciphers behaves like a one\nshot encryption and decryption call. 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The prescan walks the subject for positions where the full pattern could match, and the engine tries it from the leftmost one recorded. A failing transition sets the failed flag, and a later successful transition does not clear it, so the prescan reads the stale flag as a failure and stops before it can record a candidate that starts earlier. It takes a subject where one candidate is recorded and a later character then forces a fallback through a fail link that succeeds.  Example:    \"ABCDE\" =~ m/ABCF|BCDE|C/;    # matches C at offset 2, not BCDE   \"ABCDE\" =~ m/ABCF|BCDE|C(G)/; # no match, BCDE missed  An alternation like this can miss input it should match, or match it on the wrong branch, so an access or filtering decision made from the result can be wrong."},"relatedVulnerabilities":[{"id":"CVE-2026-19487","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-19487","cwe":"CWE-670","type":"Secondary","source":"9b29abf9-4ab0-4765-b253-1875cd9b441e"}],"epss":[{"cve":"CVE-2026-19487","date":"2026-10-27","epss":0.00418,"percentile":0.35957}],"urls":["https://github.com/Perl/perl5/commit/1a21abacaf6f684928bae8baaa153733c8c238eb.patch","https://github.com/Perl/perl5/issues/22892","http://www.openwall.com/lists/oss-security/2026/08/13/8"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-19487","description":"Perl versions from 5.9.4 before 5.41.9 produce incorrect regular expression match results when a stale failure flag ends the Aho-Corasick prescan early in S_find_byclass.\n\nThe prescan walks the subject for positions where the full pattern could match, and the engine tries it from the leftmost one recorded. A failing transition sets the failed flag, and a later successful transition does not clear it, so the prescan reads the stale flag as a failure and stops before it can record a candidate that starts earlier. It takes a subject where one candidate is recorded and a later character then forces a fallback through a fail link that succeeds.\n\nExample:\n\n  \"ABCDE\" =~ m/ABCF|BCDE|C/;    # matches C at offset 2, not BCDE\n  \"ABCDE\" =~ m/ABCF|BCDE|C(G)/; # no match, BCDE missed\n\nAn alternation like this can miss input it should match, or match it on the wrong branch, so an access or filtering decision made from the result can be wrong."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-45446","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-45446","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","metrics":{"baseScore":4.8,"impactScore":2.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-45446","cwe":"CWE-325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-45446","date":"2026-10-27","epss":0.00439,"percentile":0.37934}],"risk":0.21511,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-45446","description":"Issue summary: The implementations of AES-SIV (RFC 5297) and AES-GCM-SIV (RFC 8452) mishandle the authentication of AAD (Additional Authenticated Data) with an empty ciphertext allowing a forgery of such messages.  Impact summary: An attacker can forge empty messages with arbitrary AAD to the victim's application using these ciphers.  AES-SIV (RFC 5297) and AES-GCM-SIV (RFC 8452) are nonce-misuse-resistant AEAD modes: they accept a key, nonce, optional AAD (bytes that are authenticated but not encrypted), and plaintext, and produces ciphertext plus a 16-byte tag. On decrypt, `EVP_DecryptFinal_ex()` is documented to return success only if the tag is verified succesfully.  In OpenSSL's provider implementation of these ciphers, the expected tag is computed only when decryption function is invoked with non-empty data. If the caller supplies AAD and then calls `EVP_DecryptFinal_ex()` without invocation of the ciphertext update, which can happen when the received ciphertext length is zero, the tag is never recalculated and still holds its all-zeros value.  When AES-GCM-SIV is used, an attacker who sends arbitrary AAD, empty ciphertext, and all-zeros tag passes authentication under any key they do not know, single-shot. When AES-SIV is used, for mounting the attack it's necessary for the application to reuse the decryption context without resetting the key.  AES-SIV is implemented since OpenSSL 3.0. AES-GCM-SIV is implemented since OpenSSL 3.2.  No protocols implemented in OpenSSL itself (TLS/CMS/PKCS7/HPKE/QUIC) support either AES-GCM-SIV or AES-SIV. To mount an attack, the applications must implement their own protocol and use the EVP interface. Also they must skip the ciphertext update when a message with an empty ciphertext arrives.  The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as these algorithms are not FIPS approved and the affected code is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-45446","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","metrics":{"baseScore":4.8,"impactScore":2.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-45446","cwe":"CWE-325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-45446","date":"2026-10-27","epss":0.00439,"percentile":0.37934}],"urls":["https://github.com/openssl/openssl/commit/25b32cd9d41d2bc01b6abc425bb4baf2c2236fdc","https://github.com/openssl/openssl/commit/71e2a5d263518cf5866043bd60ee4994d59e53a3","https://github.com/openssl/openssl/commit/7fe3f33a3b3a4c487aa4dcdbc87057f66ffd2b85","https://github.com/openssl/openssl/commit/daca0f48e4a69a2892a62262bad59e62a8a76598","https://github.com/openssl/openssl/commit/eec5e9bf0d867333b8495e456f5235d225798a68","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-45446","description":"Issue summary: The implementations of AES-SIV (RFC 5297) and AES-GCM-SIV\n(RFC 8452) mishandle the authentication of AAD (Additional Authenticated\nData) with an empty ciphertext allowing a forgery of such messages.\n\nImpact summary: An attacker can forge empty messages with arbitrary AAD\nto the victim's application using these ciphers.\n\nAES-SIV (RFC 5297) and AES-GCM-SIV (RFC 8452) are nonce-misuse-resistant AEAD\nmodes: they accept a key, nonce, optional AAD (bytes that are authenticated\nbut not encrypted), and plaintext, and produces ciphertext plus a 16-byte\ntag. On decrypt, `EVP_DecryptFinal_ex()` is documented to return success only\nif the tag is verified succesfully.\n\nIn OpenSSL's provider implementation of these ciphers, the expected tag is\ncomputed only when decryption function is invoked with non-empty data.\nIf the caller supplies AAD and then calls `EVP_DecryptFinal_ex()` without\ninvocation of the ciphertext update, which can happen when the received\nciphertext length is zero, the tag is never recalculated and still holds its\nall-zeros value.\n\nWhen AES-GCM-SIV is used, an attacker who sends arbitrary AAD, empty\nciphertext, and all-zeros tag passes authentication under any key they do not\nknow, single-shot. When AES-SIV is used, for mounting the attack it's\nnecessary for the application to reuse the decryption context without\nresetting the key.\n\nAES-SIV is implemented since OpenSSL 3.0. AES-GCM-SIV is implemented since\nOpenSSL 3.2.\n\nNo protocols implemented in OpenSSL itself (TLS/CMS/PKCS7/HPKE/QUIC) support\neither AES-GCM-SIV or AES-SIV. To mount an attack, the applications must\nimplement their own protocol and use the EVP interface. Also they must skip the\nciphertext update when a message with an empty ciphertext arrives.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this\nissue, as these algorithms are not FIPS approved and the affected code is\noutside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-45446","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-45446","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","metrics":{"baseScore":4.8,"impactScore":2.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-45446","cwe":"CWE-325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-45446","date":"2026-10-27","epss":0.00439,"percentile":0.37934}],"risk":0.21511,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-45446","description":"Issue summary: The implementations of AES-SIV (RFC 5297) and AES-GCM-SIV (RFC 8452) mishandle the authentication of AAD (Additional Authenticated Data) with an empty ciphertext allowing a forgery of such messages.  Impact summary: An attacker can forge empty messages with arbitrary AAD to the victim's application using these ciphers.  AES-SIV (RFC 5297) and AES-GCM-SIV (RFC 8452) are nonce-misuse-resistant AEAD modes: they accept a key, nonce, optional AAD (bytes that are authenticated but not encrypted), and plaintext, and produces ciphertext plus a 16-byte tag. On decrypt, `EVP_DecryptFinal_ex()` is documented to return success only if the tag is verified succesfully.  In OpenSSL's provider implementation of these ciphers, the expected tag is computed only when decryption function is invoked with non-empty data. If the caller supplies AAD and then calls `EVP_DecryptFinal_ex()` without invocation of the ciphertext update, which can happen when the received ciphertext length is zero, the tag is never recalculated and still holds its all-zeros value.  When AES-GCM-SIV is used, an attacker who sends arbitrary AAD, empty ciphertext, and all-zeros tag passes authentication under any key they do not know, single-shot. When AES-SIV is used, for mounting the attack it's necessary for the application to reuse the decryption context without resetting the key.  AES-SIV is implemented since OpenSSL 3.0. AES-GCM-SIV is implemented since OpenSSL 3.2.  No protocols implemented in OpenSSL itself (TLS/CMS/PKCS7/HPKE/QUIC) support either AES-GCM-SIV or AES-SIV. To mount an attack, the applications must implement their own protocol and use the EVP interface. Also they must skip the ciphertext update when a message with an empty ciphertext arrives.  The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as these algorithms are not FIPS approved and the affected code is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-45446","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","metrics":{"baseScore":4.8,"impactScore":2.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-45446","cwe":"CWE-325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-45446","date":"2026-10-27","epss":0.00439,"percentile":0.37934}],"urls":["https://github.com/openssl/openssl/commit/25b32cd9d41d2bc01b6abc425bb4baf2c2236fdc","https://github.com/openssl/openssl/commit/71e2a5d263518cf5866043bd60ee4994d59e53a3","https://github.com/openssl/openssl/commit/7fe3f33a3b3a4c487aa4dcdbc87057f66ffd2b85","https://github.com/openssl/openssl/commit/daca0f48e4a69a2892a62262bad59e62a8a76598","https://github.com/openssl/openssl/commit/eec5e9bf0d867333b8495e456f5235d225798a68","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-45446","description":"Issue summary: The implementations of AES-SIV (RFC 5297) and AES-GCM-SIV\n(RFC 8452) mishandle the authentication of AAD (Additional Authenticated\nData) with an empty ciphertext allowing a forgery of such messages.\n\nImpact summary: An attacker can forge empty messages with arbitrary AAD\nto the victim's application using these ciphers.\n\nAES-SIV (RFC 5297) and AES-GCM-SIV (RFC 8452) are nonce-misuse-resistant AEAD\nmodes: they accept a key, nonce, optional AAD (bytes that are authenticated\nbut not encrypted), and plaintext, and produces ciphertext plus a 16-byte\ntag. On decrypt, `EVP_DecryptFinal_ex()` is documented to return success only\nif the tag is verified succesfully.\n\nIn OpenSSL's provider implementation of these ciphers, the expected tag is\ncomputed only when decryption function is invoked with non-empty data.\nIf the caller supplies AAD and then calls `EVP_DecryptFinal_ex()` without\ninvocation of the ciphertext update, which can happen when the received\nciphertext length is zero, the tag is never recalculated and still holds its\nall-zeros value.\n\nWhen AES-GCM-SIV is used, an attacker who sends arbitrary AAD, empty\nciphertext, and all-zeros tag passes authentication under any key they do not\nknow, single-shot. When AES-SIV is used, for mounting the attack it's\nnecessary for the application to reuse the decryption context without\nresetting the key.\n\nAES-SIV is implemented since OpenSSL 3.0. AES-GCM-SIV is implemented since\nOpenSSL 3.2.\n\nNo protocols implemented in OpenSSL itself (TLS/CMS/PKCS7/HPKE/QUIC) support\neither AES-GCM-SIV or AES-SIV. To mount an attack, the applications must\nimplement their own protocol and use the EVP interface. Also they must skip the\nciphertext update when a message with an empty ciphertext arrives.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this\nissue, as these algorithms are not FIPS approved and the affected code is\noutside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-45446","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-45446","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","metrics":{"baseScore":4.8,"impactScore":2.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-45446","cwe":"CWE-325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-45446","date":"2026-10-27","epss":0.00439,"percentile":0.37934}],"risk":0.21511,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-45446","description":"Issue summary: The implementations of AES-SIV (RFC 5297) and AES-GCM-SIV (RFC 8452) mishandle the authentication of AAD (Additional Authenticated Data) with an empty ciphertext allowing a forgery of such messages.  Impact summary: An attacker can forge empty messages with arbitrary AAD to the victim's application using these ciphers.  AES-SIV (RFC 5297) and AES-GCM-SIV (RFC 8452) are nonce-misuse-resistant AEAD modes: they accept a key, nonce, optional AAD (bytes that are authenticated but not encrypted), and plaintext, and produces ciphertext plus a 16-byte tag. On decrypt, `EVP_DecryptFinal_ex()` is documented to return success only if the tag is verified succesfully.  In OpenSSL's provider implementation of these ciphers, the expected tag is computed only when decryption function is invoked with non-empty data. If the caller supplies AAD and then calls `EVP_DecryptFinal_ex()` without invocation of the ciphertext update, which can happen when the received ciphertext length is zero, the tag is never recalculated and still holds its all-zeros value.  When AES-GCM-SIV is used, an attacker who sends arbitrary AAD, empty ciphertext, and all-zeros tag passes authentication under any key they do not know, single-shot. When AES-SIV is used, for mounting the attack it's necessary for the application to reuse the decryption context without resetting the key.  AES-SIV is implemented since OpenSSL 3.0. AES-GCM-SIV is implemented since OpenSSL 3.2.  No protocols implemented in OpenSSL itself (TLS/CMS/PKCS7/HPKE/QUIC) support either AES-GCM-SIV or AES-SIV. To mount an attack, the applications must implement their own protocol and use the EVP interface. Also they must skip the ciphertext update when a message with an empty ciphertext arrives.  The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as these algorithms are not FIPS approved and the affected code is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-45446","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","metrics":{"baseScore":4.8,"impactScore":2.6,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-45446","cwe":"CWE-325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-45446","date":"2026-10-27","epss":0.00439,"percentile":0.37934}],"urls":["https://github.com/openssl/openssl/commit/25b32cd9d41d2bc01b6abc425bb4baf2c2236fdc","https://github.com/openssl/openssl/commit/71e2a5d263518cf5866043bd60ee4994d59e53a3","https://github.com/openssl/openssl/commit/7fe3f33a3b3a4c487aa4dcdbc87057f66ffd2b85","https://github.com/openssl/openssl/commit/daca0f48e4a69a2892a62262bad59e62a8a76598","https://github.com/openssl/openssl/commit/eec5e9bf0d867333b8495e456f5235d225798a68","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-45446","description":"Issue summary: The implementations of AES-SIV (RFC 5297) and AES-GCM-SIV\n(RFC 8452) mishandle the authentication of AAD (Additional Authenticated\nData) with an empty ciphertext allowing a forgery of such messages.\n\nImpact summary: An attacker can forge empty messages with arbitrary AAD\nto the victim's application using these ciphers.\n\nAES-SIV (RFC 5297) and AES-GCM-SIV (RFC 8452) are nonce-misuse-resistant AEAD\nmodes: they accept a key, nonce, optional AAD (bytes that are authenticated\nbut not encrypted), and plaintext, and produces ciphertext plus a 16-byte\ntag. On decrypt, `EVP_DecryptFinal_ex()` is documented to return success only\nif the tag is verified succesfully.\n\nIn OpenSSL's provider implementation of these ciphers, the expected tag is\ncomputed only when decryption function is invoked with non-empty data.\nIf the caller supplies AAD and then calls `EVP_DecryptFinal_ex()` without\ninvocation of the ciphertext update, which can happen when the received\nciphertext length is zero, the tag is never recalculated and still holds its\nall-zeros value.\n\nWhen AES-GCM-SIV is used, an attacker who sends arbitrary AAD, empty\nciphertext, and all-zeros tag passes authentication under any key they do not\nknow, single-shot. When AES-SIV is used, for mounting the attack it's\nnecessary for the application to reuse the decryption context without\nresetting the key.\n\nAES-SIV is implemented since OpenSSL 3.0. 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Impact summary: An attacker can forge empty messages with arbitrary AAD to the victim's application using these ciphers.  AES-SIV (RFC 5297) and AES-GCM-SIV (RFC 8452) are nonce-misuse-resistant AEAD modes: they accept a key, nonce, optional AAD (bytes that are authenticated but not encrypted), and plaintext, and produces ciphertext plus a 16-byte tag. On decrypt, `EVP_DecryptFinal_ex()` is documented to return success only if the tag is verified succesfully.  In OpenSSL's provider implementation of these ciphers, the expected tag is computed only when decryption function is invoked with non-empty data. If the caller supplies AAD and then calls `EVP_DecryptFinal_ex()` without invocation of the ciphertext update, which can happen when the received ciphertext length is zero, the tag is never recalculated and still holds its all-zeros value.  When AES-GCM-SIV is used, an attacker who sends arbitrary AAD, empty ciphertext, and all-zeros tag passes authentication under any key they do not know, single-shot. When AES-SIV is used, for mounting the attack it's necessary for the application to reuse the decryption context without resetting the key.  AES-SIV is implemented since OpenSSL 3.0. AES-GCM-SIV is implemented since OpenSSL 3.2.  No protocols implemented in OpenSSL itself (TLS/CMS/PKCS7/HPKE/QUIC) support either AES-GCM-SIV or AES-SIV. To mount an attack, the applications must implement their own protocol and use the EVP interface. Also they must skip the ciphertext update when a message with an empty ciphertext arrives.  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On decrypt, `EVP_DecryptFinal_ex()` is documented to return success only\nif the tag is verified succesfully.\n\nIn OpenSSL's provider implementation of these ciphers, the expected tag is\ncomputed only when decryption function is invoked with non-empty data.\nIf the caller supplies AAD and then calls `EVP_DecryptFinal_ex()` without\ninvocation of the ciphertext update, which can happen when the received\nciphertext length is zero, the tag is never recalculated and still holds its\nall-zeros value.\n\nWhen AES-GCM-SIV is used, an attacker who sends arbitrary AAD, empty\nciphertext, and all-zeros tag passes authentication under any key they do not\nknow, single-shot. When AES-SIV is used, for mounting the attack it's\nnecessary for the application to reuse the decryption context without\nresetting the key.\n\nAES-SIV is implemented since OpenSSL 3.0. 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Impact summary: A malicious peer which presents an X9.42 key carrying the victim's p and g parameters, a forged q = r (a small prime factor of the cofactor (p−1)/q_local), and a public value Y of order r can recover the victim's private key after a small number of key exchange attempts.  When EVP_PKEY_derive_set_peer() is called with a DHX (X9.42) peer key, the subgroup membership check Y^q ≡ 1 (mod p) is performed using the peer's own q parameter, not the local key's q. The peer's domain parameters are then matched against the domain parameters of the private key, but the value of q is not compared.  A malicious peer who presents an X9.42 key carrying the victim's p, g, a forged q = r (a small prime factor of the cofactor), and a public value Y of order r passes all checks. The shared secret then takes only r distinct values, leaking priv mod r. Repeating for each small-prime factor of the cofactor and combining via CRT recovers the full private key (Lim–Lee / small-subgroup-confinement attack).  The realistic attack surface is narrow: principally CMP deployments with long-lived RA/CA DHX keys and bespoke enterprise or government applications using X9.42 DHX static keys with interactive protocols and therefore this issue was assigned Low severity.  The FIPS modules in 4.0, 3.6, 3.5, 3.4, 3.1.2 and 3.0 are affected by this issue."},"relatedVulnerabilities":[{"id":"CVE-2026-42770","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42770","cwe":"CWE-325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42770","date":"2026-10-27","epss":0.00503,"percentile":0.42824}],"urls":["https://github.com/openssl/openssl/commit/3da5a516cd2635a320ff748503db2cef7c4b0f02","https://github.com/openssl/openssl/commit/3ddbb7ab50bd93dfc59cbe08e269a67605aeebdb","https://github.com/openssl/openssl/commit/5f452bba2c681423d8fcffd120a19b757ee42e3c","https://github.com/openssl/openssl/commit/7fbfde7677ed8808828bf00ff01c937ca04bdda2","https://github.com/openssl/openssl/commit/ca2237ab5615641b662183b077f62c08d75e8070","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"Low","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-42770","description":"Issue summary: When EVP_PKEY_derive_set_peer() is called with a DHX (X9.42)\npeer key, the peer key is not properly checked for the subgroup membership.\n\nImpact summary: A malicious peer which presents an X9.42 key carrying the\nvictim's p and g parameters, a forged q = r (a small prime factor of the\ncofactor (p−1)/q_local), and a public value Y of order r can recover the\nvictim's private key after a small number of key exchange attempts.\n\nWhen EVP_PKEY_derive_set_peer() is called with a DHX (X9.42) peer key, the\nsubgroup membership check Y^q ≡ 1 (mod p) is performed using the peer's\nown q parameter, not the local key's q. The peer's domain parameters are\nthen matched against the domain parameters of the private key, but the value\nof q is not compared.\n\nA malicious peer who presents an X9.42 key carrying the victim's p, g,\na forged q = r (a small prime factor of the cofactor), and a public\nvalue Y of order r passes all checks. The shared secret then takes only\nr distinct values, leaking priv mod r. Repeating for each small-prime\nfactor of the cofactor and combining via CRT recovers the full private\nkey (Lim–Lee / small-subgroup-confinement attack).\n\nThe realistic attack surface is narrow: principally CMP deployments with\nlong-lived RA/CA DHX keys and bespoke enterprise or government applications\nusing X9.42 DHX static keys with interactive protocols and therefore this\nissue was assigned Low severity.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, 3.1.2 and 3.0 are affected by this\nissue."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-42770","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-42770","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42770","cwe":"CWE-325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42770","date":"2026-10-27","epss":0.00503,"percentile":0.42824}],"risk":0.168505,"urls":[],"severity":"Low","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-42770","description":"Issue summary: When EVP_PKEY_derive_set_peer() is called with a DHX (X9.42) peer key, the peer key is not properly checked for the subgroup membership.  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Repeating for each small-prime factor of the cofactor and combining via CRT recovers the full private key (Lim–Lee / small-subgroup-confinement attack).  The realistic attack surface is narrow: principally CMP deployments with long-lived RA/CA DHX keys and bespoke enterprise or government applications using X9.42 DHX static keys with interactive protocols and therefore this issue was assigned Low severity.  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The peer's domain parameters are\nthen matched against the domain parameters of the private key, but the value\nof q is not compared.\n\nA malicious peer who presents an X9.42 key carrying the victim's p, g,\na forged q = r (a small prime factor of the cofactor), and a public\nvalue Y of order r passes all checks. The shared secret then takes only\nr distinct values, leaking priv mod r. Repeating for each small-prime\nfactor of the cofactor and combining via CRT recovers the full private\nkey (Lim–Lee / small-subgroup-confinement attack).\n\nThe realistic attack surface is narrow: principally CMP deployments with\nlong-lived RA/CA DHX keys and bespoke enterprise or government applications\nusing X9.42 DHX static keys with interactive protocols and therefore this\nissue was assigned Low severity.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, 3.1.2 and 3.0 are affected by this\nissue."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-42770","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-42770","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42770","cwe":"CWE-325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42770","date":"2026-10-27","epss":0.00503,"percentile":0.42824}],"risk":0.168505,"urls":[],"severity":"Low","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-42770","description":"Issue summary: When EVP_PKEY_derive_set_peer() is called with a DHX (X9.42) peer key, the peer key is not properly checked for the subgroup membership.  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Repeating for each small-prime factor of the cofactor and combining via CRT recovers the full private key (Lim–Lee / small-subgroup-confinement attack).  The realistic attack surface is narrow: principally CMP deployments with long-lived RA/CA DHX keys and bespoke enterprise or government applications using X9.42 DHX static keys with interactive protocols and therefore this issue was assigned Low severity.  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The peer's domain parameters are\nthen matched against the domain parameters of the private key, but the value\nof q is not compared.\n\nA malicious peer who presents an X9.42 key carrying the victim's p, g,\na forged q = r (a small prime factor of the cofactor), and a public\nvalue Y of order r passes all checks. The shared secret then takes only\nr distinct values, leaking priv mod r. Repeating for each small-prime\nfactor of the cofactor and combining via CRT recovers the full private\nkey (Lim–Lee / small-subgroup-confinement attack).\n\nThe realistic attack surface is narrow: principally CMP deployments with\nlong-lived RA/CA DHX keys and bespoke enterprise or government applications\nusing X9.42 DHX static keys with interactive protocols and therefore this\nissue was assigned Low severity.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, 3.1.2 and 3.0 are affected by this\nissue."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.6-1~deb13u2"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-42770","versionConstraint":"< 3.5.6-1~deb13u2 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-42770","fix":{"state":"fixed","versions":["3.5.6-1~deb13u2"],"available":[{"date":"2026-06-09","kind":"advisory","version":"3.5.6-1~deb13u2"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42770","cwe":"CWE-325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42770","date":"2026-10-27","epss":0.00503,"percentile":0.42824}],"risk":0.168505,"urls":[],"severity":"Low","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6335-1","link":"https://security-tracker.debian.org/tracker/DSA-6335-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-42770","description":"Issue summary: When EVP_PKEY_derive_set_peer() is called with a DHX (X9.42) peer key, the peer key is not properly checked for the subgroup membership.  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Repeating for each small-prime factor of the cofactor and combining via CRT recovers the full private key (Lim–Lee / small-subgroup-confinement attack).  The realistic attack surface is narrow: principally CMP deployments with long-lived RA/CA DHX keys and bespoke enterprise or government applications using X9.42 DHX static keys with interactive protocols and therefore this issue was assigned Low severity.  The FIPS modules in 4.0, 3.6, 3.5, 3.4, 3.1.2 and 3.0 are affected by this issue."},"relatedVulnerabilities":[{"id":"CVE-2026-42770","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-42770","cwe":"CWE-325","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-42770","date":"2026-10-27","epss":0.00503,"percentile":0.42824}],"urls":["https://github.com/openssl/openssl/commit/3da5a516cd2635a320ff748503db2cef7c4b0f02","https://github.com/openssl/openssl/commit/3ddbb7ab50bd93dfc59cbe08e269a67605aeebdb","https://github.com/openssl/openssl/commit/5f452bba2c681423d8fcffd120a19b757ee42e3c","https://github.com/openssl/openssl/commit/7fbfde7677ed8808828bf00ff01c937ca04bdda2","https://github.com/openssl/openssl/commit/ca2237ab5615641b662183b077f62c08d75e8070","https://openssl-library.org/news/secadv/20260609.txt"],"severity":"Low","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-42770","description":"Issue summary: When EVP_PKEY_derive_set_peer() is called with a DHX (X9.42)\npeer key, the peer key is not properly checked for the subgroup membership.\n\nImpact summary: A malicious peer which presents an X9.42 key carrying the\nvictim's p and g parameters, a forged q = r (a small prime factor of the\ncofactor (p−1)/q_local), and a public value Y of order r can recover the\nvictim's private key after a small number of key exchange attempts.\n\nWhen EVP_PKEY_derive_set_peer() is called with a DHX (X9.42) peer key, the\nsubgroup membership check Y^q ≡ 1 (mod p) is performed using the peer's\nown q parameter, not the local key's q. The peer's domain parameters are\nthen matched against the domain parameters of the private key, but the value\nof q is not compared.\n\nA malicious peer who presents an X9.42 key carrying the victim's p, g,\na forged q = r (a small prime factor of the cofactor), and a public\nvalue Y of order r passes all checks. The shared secret then takes only\nr distinct values, leaking priv mod r. Repeating for each small-prime\nfactor of the cofactor and combining via CRT recovers the full private\nkey (Lim–Lee / small-subgroup-confinement attack).\n\nThe realistic attack surface is narrow: principally CMP deployments with\nlong-lived RA/CA DHX keys and bespoke enterprise or government applications\nusing X9.42 DHX static keys with interactive protocols and therefore this\nissue was assigned Low severity.\n\nThe FIPS modules in 4.0, 3.6, 3.5, 3.4, 3.1.2 and 3.0 are affected by this\nissue."}]},{"artifact":{"id":"c9a7a6c12ce9a73e","cpes":["cpe:2.3:a:perl-base:perl-base:5.40.1-6:*:*:*:*:*:*:*","cpe:2.3:a:perl-base:perl_base:5.40.1-6:*:*:*:*:*:*:*","cpe:2.3:a:perl_base:perl-base:5.40.1-6:*:*:*:*:*:*:*","cpe:2.3:a:perl_base:perl_base:5.40.1-6:*:*:*:*:*:*:*","cpe:2.3:a:perl:perl-base:5.40.1-6:*:*:*:*:*:*:*","cpe:2.3:a:perl:perl_base:5.40.1-6:*:*:*:*:*:*:*"],"name":"perl-base","purl":"pkg:deb/debian/perl-base@5.40.1-6?arch=amd64&distro=debian-13.4&upstream=perl","type":"deb","version":"5.40.1-6","language":"","licenses":["Artistic","Artistic-2","Artistic-dist","BSD-3-clause","BSD-3-clause-GENERIC","BSD-3-clause-with-weird-numbering","BSD-4-clause-POWERDOG","BZIP","DONT-CHANGE-THE-GPL","Expat","FSFAP","GPL-1","GPL-1+","GPL-2","GPL-2+","GPL-3+-WITH-BISON-EXCEPTION","LGPL-2.1","REGCOMP","REGCOMP,","SDBM-PUBLIC-DOMAIN","TEXT-TABS","Unicode","ZLIB"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/perl-base/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/perl-base/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/perl-base.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/perl-base.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/perl-base.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/perl-base.list"}],"upstreams":[{"name":"perl"}]},"matchDetails":[{"fix":{"suggestedVersion":"5.40.1-6+deb13u1"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-57432","versionConstraint":"< 5.40.1-6+deb13u1 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"perl","version":"5.40.1-6"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-57432","fix":{"state":"fixed","versions":["5.40.1-6+deb13u1"],"available":[{"date":"2026-09-13","kind":"first-observed","version":"5.40.1-6+deb13u1"}]},"cvss":[{"type":"Primary","source":"nvd@nist.gov","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":8.4,"impactScore":5.9,"exploitabilityScore":2.6},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-57432","cwe":"CWE-125","type":"Secondary","source":"9b29abf9-4ab0-4765-b253-1875cd9b441e"},{"cve":"CVE-2026-57432","cwe":"CWE-190","type":"Secondary","source":"9b29abf9-4ab0-4765-b253-1875cd9b441e"}],"epss":[{"cve":"CVE-2026-57432","date":"2026-10-27","epss":0.00211,"percentile":0.11222}],"risk":0.167745,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-57432","description":"Perl versions before 5.40.5-RC1, from 5.41.0 before 5.42.3-RC1, from 5.43.0 before 5.43.11 have an integer overflow in S_measure_struct leading to an out-of-bounds heap read in pack and unpack.  S_measure_struct adds each item's size times its repeat count to a running total with no overflow check, so a large repeat count in a pack or unpack template wraps the signed SSize_t total negative. The @, X, and x position codes then guard their moves with a signed length comparison that passes when the length is negative, advancing the buffer pointer out of bounds.  A template derived from untrusted input can read heap memory past the buffer and return it to the caller."},"relatedVulnerabilities":[{"id":"CVE-2026-57432","cvss":[{"type":"Primary","source":"nvd@nist.gov","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":8.4,"impactScore":5.9,"exploitabilityScore":2.6},"version":"3.1","vendorMetadata":{}},{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":8.4,"impactScore":5.9,"exploitabilityScore":2.6},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-57432","cwe":"CWE-125","type":"Secondary","source":"9b29abf9-4ab0-4765-b253-1875cd9b441e"},{"cve":"CVE-2026-57432","cwe":"CWE-190","type":"Secondary","source":"9b29abf9-4ab0-4765-b253-1875cd9b441e"}],"epss":[{"cve":"CVE-2026-57432","date":"2026-10-27","epss":0.00211,"percentile":0.11222}],"urls":["https://github.com/Perl/perl5/commit/40754edc72dd3e513d758153c0e2f0215897740e.patch","https://github.com/Perl/perl5/commit/5f7eb6bbbe0510964e3fb1d6bb691e5445913e55.patch","http://www.openwall.com/lists/oss-security/2026/07/13/6"],"severity":"High","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-57432","description":"Perl versions before 5.40.5-RC1, from 5.41.0 before 5.42.3-RC1, from 5.43.0 before 5.43.11 have an integer overflow in S_measure_struct leading to an out-of-bounds heap read in pack and unpack.\n\nS_measure_struct adds each item's size times its repeat count to a running total with no overflow check, so a large repeat count in a pack or unpack template wraps the signed SSize_t total negative. The @, X, and x position codes then guard their moves with a signed length comparison that passes when the length is negative, advancing the buffer pointer out of bounds.\n\nA template derived from untrusted input can read heap memory past the buffer and return it to the caller."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-75805","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-75805","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75805","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75805","date":"2026-10-27","epss":0.00324,"percentile":0.25337}],"risk":0.16685999999999998,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-75805","description":"Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response.   Impact summary: The NULL pointer dereference happens on a read which  leads to a crash and a Denial of Service for the affected client application.  CWE: CWE-476: NULL-pointer dereference  Description: A CMP client revoking a certificate has to tell the server which certificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the certificate itself or its issuer name and serial number. This is 'openssl cmp -cmd rr -csr <file>' on the command line, or OSSL_CMP_exec_RR_ses() with the certificate supplied via OSSL_CMP_CTX_set1_p10CSR() through the API.  A CSR does not contain the issuer name and serial number of the certificate, so the client does not send them. A server may optionally name the certificate it revoked in its response, and the client then compares that name against what it sent. Having sent neither an issuer name nor a serial number, it has nothing to compare against, and a server returning a specially crafted name causes the client to read from a NULL pointer and crash.  The revocation response is checked for valid message protection before the affected code is reached, so an attacker must be a malicious or compromised CMP server, or a man-in-the-middle in possession of the secret used for message protection. Clients that identify the certificate to be revoked by a certificate or by issuer and serial number rather than by a PKCS#10 CSR are not affected.  FIPS impact: no No FIPS modules are affected by this issue, as the CMP protocol implementation is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-75805","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75805","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75805","date":"2026-10-27","epss":0.00324,"percentile":0.25337}],"urls":["https://github.com/openssl/openssl/commit/7588db7fef14209c3caa3a101d11a02006b19166","https://github.com/openssl/openssl/commit/7ca0ccb5172a577e9b87267d77bfe21e5481a5e7","https://github.com/openssl/openssl/commit/9eb2a8a9b86136cdb39d6d7d50644dd66941cdc3","https://github.com/openssl/openssl/commit/abf02872a4b71767ecc72293424420f5b009190f","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-75805","description":"Issue summary: A CMP client that requests certificate revocation on the basis\nof a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when\nprocessing a crafted revocation response. \n\nImpact summary: The NULL pointer dereference happens on a read which \nleads to a crash and a Denial of Service for the affected client application.\n\nCWE: CWE-476: NULL-pointer dereference\n\nDescription: A CMP client revoking a certificate has to tell the server which\ncertificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the\ncertificate itself or its issuer name and serial number. This is\n'openssl cmp -cmd rr -csr <file>' on the command line, or\nOSSL_CMP_exec_RR_ses() with the certificate supplied via\nOSSL_CMP_CTX_set1_p10CSR() through the API.\n\nA CSR does not contain the issuer name and serial number of the certificate,\nso the client does not send them. A server may optionally name the\ncertificate it revoked in its response, and the client then compares that\nname against what it sent. Having sent neither an issuer name nor a serial\nnumber, it has nothing to compare against, and a server returning a specially\ncrafted name causes the client to read from a NULL pointer and crash.\n\nThe revocation response is checked for valid message protection before\nthe affected code is reached, so an attacker must be a malicious or\ncompromised CMP server, or a man-in-the-middle in possession of the\nsecret used for message protection. Clients that identify the certificate\nto be revoked by a certificate or by issuer and serial number rather\nthan by a PKCS#10 CSR are not affected.\n\nFIPS impact: no\nNo FIPS modules are affected by this issue, as the CMP protocol\nimplementation is outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-75805","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-75805","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75805","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75805","date":"2026-10-27","epss":0.00324,"percentile":0.25337}],"risk":0.16685999999999998,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-75805","description":"Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response.   Impact summary: The NULL pointer dereference happens on a read which  leads to a crash and a Denial of Service for the affected client application.  CWE: CWE-476: NULL-pointer dereference  Description: A CMP client revoking a certificate has to tell the server which certificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the certificate itself or its issuer name and serial number. This is 'openssl cmp -cmd rr -csr <file>' on the command line, or OSSL_CMP_exec_RR_ses() with the certificate supplied via OSSL_CMP_CTX_set1_p10CSR() through the API.  A CSR does not contain the issuer name and serial number of the certificate, so the client does not send them. A server may optionally name the certificate it revoked in its response, and the client then compares that name against what it sent. Having sent neither an issuer name nor a serial number, it has nothing to compare against, and a server returning a specially crafted name causes the client to read from a NULL pointer and crash.  The revocation response is checked for valid message protection before the affected code is reached, so an attacker must be a malicious or compromised CMP server, or a man-in-the-middle in possession of the secret used for message protection. Clients that identify the certificate to be revoked by a certificate or by issuer and serial number rather than by a PKCS#10 CSR are not affected.  FIPS impact: no No FIPS modules are affected by this issue, as the CMP protocol implementation is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-75805","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75805","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75805","date":"2026-10-27","epss":0.00324,"percentile":0.25337}],"urls":["https://github.com/openssl/openssl/commit/7588db7fef14209c3caa3a101d11a02006b19166","https://github.com/openssl/openssl/commit/7ca0ccb5172a577e9b87267d77bfe21e5481a5e7","https://github.com/openssl/openssl/commit/9eb2a8a9b86136cdb39d6d7d50644dd66941cdc3","https://github.com/openssl/openssl/commit/abf02872a4b71767ecc72293424420f5b009190f","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-75805","description":"Issue summary: A CMP client that requests certificate revocation on the basis\nof a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when\nprocessing a crafted revocation response. \n\nImpact summary: The NULL pointer dereference happens on a read which \nleads to a crash and a Denial of Service for the affected client application.\n\nCWE: CWE-476: NULL-pointer dereference\n\nDescription: A CMP client revoking a certificate has to tell the server which\ncertificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the\ncertificate itself or its issuer name and serial number. This is\n'openssl cmp -cmd rr -csr <file>' on the command line, or\nOSSL_CMP_exec_RR_ses() with the certificate supplied via\nOSSL_CMP_CTX_set1_p10CSR() through the API.\n\nA CSR does not contain the issuer name and serial number of the certificate,\nso the client does not send them. A server may optionally name the\ncertificate it revoked in its response, and the client then compares that\nname against what it sent. Having sent neither an issuer name nor a serial\nnumber, it has nothing to compare against, and a server returning a specially\ncrafted name causes the client to read from a NULL pointer and crash.\n\nThe revocation response is checked for valid message protection before\nthe affected code is reached, so an attacker must be a malicious or\ncompromised CMP server, or a man-in-the-middle in possession of the\nsecret used for message protection. Clients that identify the certificate\nto be revoked by a certificate or by issuer and serial number rather\nthan by a PKCS#10 CSR are not affected.\n\nFIPS impact: no\nNo FIPS modules are affected by this issue, as the CMP protocol\nimplementation is outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-75805","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-75805","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75805","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75805","date":"2026-10-27","epss":0.00324,"percentile":0.25337}],"risk":0.16685999999999998,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-75805","description":"Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response.   Impact summary: The NULL pointer dereference happens on a read which  leads to a crash and a Denial of Service for the affected client application.  CWE: CWE-476: NULL-pointer dereference  Description: A CMP client revoking a certificate has to tell the server which certificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the certificate itself or its issuer name and serial number. This is 'openssl cmp -cmd rr -csr <file>' on the command line, or OSSL_CMP_exec_RR_ses() with the certificate supplied via OSSL_CMP_CTX_set1_p10CSR() through the API.  A CSR does not contain the issuer name and serial number of the certificate, so the client does not send them. A server may optionally name the certificate it revoked in its response, and the client then compares that name against what it sent. Having sent neither an issuer name nor a serial number, it has nothing to compare against, and a server returning a specially crafted name causes the client to read from a NULL pointer and crash.  The revocation response is checked for valid message protection before the affected code is reached, so an attacker must be a malicious or compromised CMP server, or a man-in-the-middle in possession of the secret used for message protection. Clients that identify the certificate to be revoked by a certificate or by issuer and serial number rather than by a PKCS#10 CSR are not affected.  FIPS impact: no No FIPS modules are affected by this issue, as the CMP protocol implementation is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-75805","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75805","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75805","date":"2026-10-27","epss":0.00324,"percentile":0.25337}],"urls":["https://github.com/openssl/openssl/commit/7588db7fef14209c3caa3a101d11a02006b19166","https://github.com/openssl/openssl/commit/7ca0ccb5172a577e9b87267d77bfe21e5481a5e7","https://github.com/openssl/openssl/commit/9eb2a8a9b86136cdb39d6d7d50644dd66941cdc3","https://github.com/openssl/openssl/commit/abf02872a4b71767ecc72293424420f5b009190f","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-75805","description":"Issue summary: A CMP client that requests certificate revocation on the basis\nof a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when\nprocessing a crafted revocation response. \n\nImpact summary: The NULL pointer dereference happens on a read which \nleads to a crash and a Denial of Service for the affected client application.\n\nCWE: CWE-476: NULL-pointer dereference\n\nDescription: A CMP client revoking a certificate has to tell the server which\ncertificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the\ncertificate itself or its issuer name and serial number. This is\n'openssl cmp -cmd rr -csr <file>' on the command line, or\nOSSL_CMP_exec_RR_ses() with the certificate supplied via\nOSSL_CMP_CTX_set1_p10CSR() through the API.\n\nA CSR does not contain the issuer name and serial number of the certificate,\nso the client does not send them. A server may optionally name the\ncertificate it revoked in its response, and the client then compares that\nname against what it sent. Having sent neither an issuer name nor a serial\nnumber, it has nothing to compare against, and a server returning a specially\ncrafted name causes the client to read from a NULL pointer and crash.\n\nThe revocation response is checked for valid message protection before\nthe affected code is reached, so an attacker must be a malicious or\ncompromised CMP server, or a man-in-the-middle in possession of the\nsecret used for message protection. Clients that identify the certificate\nto be revoked by a certificate or by issuer and serial number rather\nthan by a PKCS#10 CSR are not affected.\n\nFIPS impact: no\nNo FIPS modules are affected by this issue, as the CMP protocol\nimplementation is outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-75805","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-75805","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75805","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75805","date":"2026-10-27","epss":0.00324,"percentile":0.25337}],"risk":0.16685999999999998,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-75805","description":"Issue summary: A CMP client that requests certificate revocation on the basis of a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when processing a crafted revocation response.   Impact summary: The NULL pointer dereference happens on a read which  leads to a crash and a Denial of Service for the affected client application.  CWE: CWE-476: NULL-pointer dereference  Description: A CMP client revoking a certificate has to tell the server which certificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the certificate itself or its issuer name and serial number. This is 'openssl cmp -cmd rr -csr <file>' on the command line, or OSSL_CMP_exec_RR_ses() with the certificate supplied via OSSL_CMP_CTX_set1_p10CSR() through the API.  A CSR does not contain the issuer name and serial number of the certificate, so the client does not send them. A server may optionally name the certificate it revoked in its response, and the client then compares that name against what it sent. Having sent neither an issuer name nor a serial number, it has nothing to compare against, and a server returning a specially crafted name causes the client to read from a NULL pointer and crash.  The revocation response is checked for valid message protection before the affected code is reached, so an attacker must be a malicious or compromised CMP server, or a man-in-the-middle in possession of the secret used for message protection. Clients that identify the certificate to be revoked by a certificate or by issuer and serial number rather than by a PKCS#10 CSR are not affected.  FIPS impact: no No FIPS modules are affected by this issue, as the CMP protocol implementation is outside the OpenSSL FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-75805","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-75805","cwe":"CWE-476","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-75805","date":"2026-10-27","epss":0.00324,"percentile":0.25337}],"urls":["https://github.com/openssl/openssl/commit/7588db7fef14209c3caa3a101d11a02006b19166","https://github.com/openssl/openssl/commit/7ca0ccb5172a577e9b87267d77bfe21e5481a5e7","https://github.com/openssl/openssl/commit/9eb2a8a9b86136cdb39d6d7d50644dd66941cdc3","https://github.com/openssl/openssl/commit/abf02872a4b71767ecc72293424420f5b009190f","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-75805","description":"Issue summary: A CMP client that requests certificate revocation on the basis\nof a PKCS#10 CSR may dereference a NULL pointer and terminate abnormally when\nprocessing a crafted revocation response. \n\nImpact summary: The NULL pointer dereference happens on a read which \nleads to a crash and a Denial of Service for the affected client application.\n\nCWE: CWE-476: NULL-pointer dereference\n\nDescription: A CMP client revoking a certificate has to tell the server which\ncertificate to revoke, and may do so by supplying a PKCS#10 CSR instead of the\ncertificate itself or its issuer name and serial number. This is\n'openssl cmp -cmd rr -csr <file>' on the command line, or\nOSSL_CMP_exec_RR_ses() with the certificate supplied via\nOSSL_CMP_CTX_set1_p10CSR() through the API.\n\nA CSR does not contain the issuer name and serial number of the certificate,\nso the client does not send them. A server may optionally name the\ncertificate it revoked in its response, and the client then compares that\nname against what it sent. Having sent neither an issuer name nor a serial\nnumber, it has nothing to compare against, and a server returning a specially\ncrafted name causes the client to read from a NULL pointer and crash.\n\nThe revocation response is checked for valid message protection before\nthe affected code is reached, so an attacker must be a malicious or\ncompromised CMP server, or a man-in-the-middle in possession of the\nsecret used for message protection. Clients that identify the certificate\nto be revoked by a certificate or by issuer and serial number rather\nthan by a PKCS#10 CSR are not affected.\n\nFIPS impact: no\nNo FIPS modules are affected by this issue, as the CMP protocol\nimplementation is outside the OpenSSL FIPS module boundary."}]},{"artifact":{"id":"04c48808acf7c92e","cpes":["cpe:2.3:a:libssl-dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl-dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl_dev:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl-dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:libssl:libssl_dev:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl-dev","purl":"pkg:deb/debian/libssl-dev@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl-dev/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/libssl-dev/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/libssl-dev:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-35189","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-35189","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-35189","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-35189","date":"2026-10-27","epss":0.00317,"percentile":0.24448}],"risk":0.16325499999999998,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-35189","description":"Issue summary: A certificate with many nameRelativeToCRLIssuer CRL distribution points causes disproportionate heap growth when OpenSSL caches X.509 extensions.  Impact summary: Receiving a crafted certificate from a malicious peer can lead to significant memory pressure and possible Denial of Service in clients or in servers that solicit client certificates.  CWE: CWE-770: Allocation of Resources Without Limits or Throttling  Description: A certificate or a set of certificates that fits under the limit for size of certificates accepted from the peer (~100 KiB) can result in allocation of several hundred MiB of resident memory on the receiving side during a normal TLS handshake.  This may be enough to crash the client or server, if multiple concurrent connections lead to similarly large memory allocations.  The fix postpones processing of the CRL distribution points extensions in certificates to the time when the processed value is required for CRL processing. This avoids keeping large memory allocations for a long time when such certificates are received.  FIPS impact: no The affected code is outside the FIPS module boundary."},"relatedVulnerabilities":[{"id":"CVE-2026-35189","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-35189","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-35189","date":"2026-10-27","epss":0.00317,"percentile":0.24448}],"urls":["https://github.com/openssl/openssl/commit/2b93c73b2c70ddc4c61c5e4bfaaa6bd71379eb84","https://github.com/openssl/openssl/commit/3842516cc15e8b2cf55747011045e77547e71d89","https://github.com/openssl/openssl/commit/8e0efc7549b7ff8246d40e585e3fd604f728473f","https://github.com/openssl/openssl/commit/c72ae182cac17a82e4246c6ecd4e9c4ec3586ec9","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-35189","description":"Issue summary: A certificate with many nameRelativeToCRLIssuer CRL\ndistribution points causes disproportionate heap growth when OpenSSL caches\nX.509 extensions.\n\nImpact summary: Receiving a crafted certificate from a malicious peer can lead\nto significant memory pressure and possible Denial of Service in clients or\nin servers that solicit client certificates.\n\nCWE: CWE-770: Allocation of Resources Without Limits or Throttling\n\nDescription: A certificate or a set of certificates that fits under the limit for\nsize of certificates accepted from the peer (~100 KiB) can result in allocation\nof several hundred MiB of resident memory on the receiving side\nduring a normal TLS handshake.  This may be enough to crash the client or\nserver, if multiple concurrent connections lead to similarly large memory\nallocations.\n\nThe fix postpones processing of the CRL distribution points extensions in\ncertificates to the time when the processed value is required for CRL processing.\nThis avoids keeping large memory allocations for a long time when such\ncertificates are received.\n\nFIPS impact: no\nThe affected code is outside the FIPS module boundary."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-35189","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-35189","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","metrics":{"baseScore":5.3,"impactScore":1.5,"exploitabilityScore":3.9},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-35189","cwe":"CWE-770","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-35189","date":"2026-10-27","epss":0.00317,"percentile":0.24448}],"risk":0.16325499999999998,"urls":[],"severity":"Medium","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-35189","description":"Issue summary: A certificate with many nameRelativeToCRLIssuer CRL distribution points causes disproportionate heap growth when OpenSSL caches X.509 extensions.  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Impact summary: An attacker able to measure the time taken by, or to observe the cache-line access pattern of SM2 signing or decryption on an affected platform can learn information about the secret scalar.  CWE: CWE-208: Observable Timing Discrepancy  Description: On ARM64 and RISC-V processors, the SM2 curve uses an optimized scalar multiplication implementation whose conditional branches and table look ups are chosen according to the bits of the secret scalar. The execution time and the cache-access pattern therefore depend on the long-term private key (during SM2 decryption) or the per-signature nonce (during SM2 signature generation), forming a timing and cache side-channel.  FIPS Impact: no SM2 is not a FIPS algorithm and the optimized SM2 implementation is not part of the FIPS module.  OpenSSL 4.0, 3.6, 3.5 and 3.4 are vulnerable to this issue on AArch64 and RISC-V.  OpenSSL 3.0, 1.1.1 and 1.0.2 are not affected by this issue.  OpenSSL 4.0 users should upgrade to OpenSSL 4.0.3. OpenSSL 3.6 users should upgrade to OpenSSL 3.6.5. OpenSSL 3.5 users should upgrade to OpenSSL 3.5.9. OpenSSL 3.4 users should upgrade to OpenSSL 3.4.8.  This issue was reported on 2 May 2026 by Abhinav Agarwal. It was independently reported on 6 June 2026 by Feng Xue. 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The execution\ntime and the cache-access pattern therefore depend on the long-term private\nkey (during SM2 decryption) or the per-signature nonce (during SM2 signature\ngeneration), forming a timing and cache side-channel.\n\nFIPS Impact: no\nSM2 is not a FIPS algorithm and the optimized SM2 implementation is not part\nof the FIPS module.\n\nOpenSSL 4.0, 3.6, 3.5 and 3.4 are vulnerable to this issue on AArch64 and\nRISC-V.\n\nOpenSSL 3.0, 1.1.1 and 1.0.2 are not affected by this issue.\n\nOpenSSL 4.0 users should upgrade to OpenSSL 4.0.3.\nOpenSSL 3.6 users should upgrade to OpenSSL 3.6.5.\nOpenSSL 3.5 users should upgrade to OpenSSL 3.5.9.\nOpenSSL 3.4 users should upgrade to OpenSSL 3.4.8.\n\nThis issue was reported on 2 May 2026 by Abhinav Agarwal.\nIt was independently reported on 6 June 2026 by Feng Xue.\nThe fix was developed by Igor Ustinov.\n\n-- cut (non-publishing metadata for internal use) --\nReported by: Abhinav Agarwal, Feng Xue\nFixed by: Igor Ustinov"}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-54875","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-54875","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54875","cwe":"CWE-208","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54875","date":"2026-10-27","epss":0.00479,"percentile":0.41109}],"risk":0.16046499999999997,"urls":[],"severity":"Low","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-54875","description":"Issue summary: A non-constant-time optimized implementation of scalar point multiplication is used for SM2 private key operations on ARM64 and RISC-V platforms.  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OpenSSL 3.6 users should upgrade to OpenSSL 3.6.5. OpenSSL 3.5 users should upgrade to OpenSSL 3.5.9. OpenSSL 3.4 users should upgrade to OpenSSL 3.4.8.  This issue was reported on 2 May 2026 by Abhinav Agarwal. It was independently reported on 6 June 2026 by Feng Xue. 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The execution\ntime and the cache-access pattern therefore depend on the long-term private\nkey (during SM2 decryption) or the per-signature nonce (during SM2 signature\ngeneration), forming a timing and cache side-channel.\n\nFIPS Impact: no\nSM2 is not a FIPS algorithm and the optimized SM2 implementation is not part\nof the FIPS module.\n\nOpenSSL 4.0, 3.6, 3.5 and 3.4 are vulnerable to this issue on AArch64 and\nRISC-V.\n\nOpenSSL 3.0, 1.1.1 and 1.0.2 are not affected by this issue.\n\nOpenSSL 4.0 users should upgrade to OpenSSL 4.0.3.\nOpenSSL 3.6 users should upgrade to OpenSSL 3.6.5.\nOpenSSL 3.5 users should upgrade to OpenSSL 3.5.9.\nOpenSSL 3.4 users should upgrade to OpenSSL 3.4.8.\n\nThis issue was reported on 2 May 2026 by Abhinav Agarwal.\nIt was independently reported on 6 June 2026 by Feng Xue.\nThe fix was developed by Igor Ustinov.\n\n-- cut (non-publishing metadata for internal use) --\nReported by: Abhinav Agarwal, Feng Xue\nFixed by: Igor Ustinov"}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-54875","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-54875","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54875","cwe":"CWE-208","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54875","date":"2026-10-27","epss":0.00479,"percentile":0.41109}],"risk":0.16046499999999997,"urls":[],"severity":"Low","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-54875","description":"Issue summary: A non-constant-time optimized implementation of scalar point multiplication is used for SM2 private key operations on ARM64 and RISC-V platforms.  Impact summary: An attacker able to measure the time taken by, or to observe the cache-line access pattern of SM2 signing or decryption on an affected platform can learn information about the secret scalar.  CWE: CWE-208: Observable Timing Discrepancy  Description: On ARM64 and RISC-V processors, the SM2 curve uses an optimized scalar multiplication implementation whose conditional branches and table look ups are chosen according to the bits of the secret scalar. The execution time and the cache-access pattern therefore depend on the long-term private key (during SM2 decryption) or the per-signature nonce (during SM2 signature generation), forming a timing and cache side-channel.  FIPS Impact: no SM2 is not a FIPS algorithm and the optimized SM2 implementation is not part of the FIPS module.  OpenSSL 4.0, 3.6, 3.5 and 3.4 are vulnerable to this issue on AArch64 and RISC-V.  OpenSSL 3.0, 1.1.1 and 1.0.2 are not affected by this issue.  OpenSSL 4.0 users should upgrade to OpenSSL 4.0.3. OpenSSL 3.6 users should upgrade to OpenSSL 3.6.5. OpenSSL 3.5 users should upgrade to OpenSSL 3.5.9. OpenSSL 3.4 users should upgrade to OpenSSL 3.4.8.  This issue was reported on 2 May 2026 by Abhinav Agarwal. It was independently reported on 6 June 2026 by Feng Xue. The fix was developed by Igor Ustinov.  -- cut (non-publishing metadata for internal use) -- Reported by: Abhinav Agarwal, Feng Xue Fixed by: Igor Ustinov"},"relatedVulnerabilities":[{"id":"CVE-2026-54875","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54875","cwe":"CWE-208","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54875","date":"2026-10-27","epss":0.00479,"percentile":0.41109}],"urls":["https://github.com/openssl/openssl/commit/3f01bbc28f7e08211fcdc797fd43816504f94257","https://github.com/openssl/openssl/commit/469f3e42629f4a0b5631796e20c66c92c138a3e8","https://github.com/openssl/openssl/commit/9794ed473764839275cb701b4850f3c24d929c28","https://github.com/openssl/openssl/commit/dddad955d5ff3e9507619cf4e0f13e9988e2197c","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"Low","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-54875","description":"Issue summary: A non-constant-time optimized implementation of scalar\npoint multiplication is used for SM2 private key operations on ARM64 and\nRISC-V platforms.\n\nImpact summary: An attacker able to measure the time taken by, or to observe\nthe cache-line access pattern of SM2 signing or decryption on an affected\nplatform can learn information about the secret scalar.\n\nCWE: CWE-208: Observable Timing Discrepancy\n\nDescription: On ARM64 and RISC-V processors, the SM2 curve uses an optimized\nscalar multiplication implementation whose conditional branches and table\nlook ups are chosen according to the bits of the secret scalar. The execution\ntime and the cache-access pattern therefore depend on the long-term private\nkey (during SM2 decryption) or the per-signature nonce (during SM2 signature\ngeneration), forming a timing and cache side-channel.\n\nFIPS Impact: no\nSM2 is not a FIPS algorithm and the optimized SM2 implementation is not part\nof the FIPS module.\n\nOpenSSL 4.0, 3.6, 3.5 and 3.4 are vulnerable to this issue on AArch64 and\nRISC-V.\n\nOpenSSL 3.0, 1.1.1 and 1.0.2 are not affected by this issue.\n\nOpenSSL 4.0 users should upgrade to OpenSSL 4.0.3.\nOpenSSL 3.6 users should upgrade to OpenSSL 3.6.5.\nOpenSSL 3.5 users should upgrade to OpenSSL 3.5.9.\nOpenSSL 3.4 users should upgrade to OpenSSL 3.4.8.\n\nThis issue was reported on 2 May 2026 by Abhinav Agarwal.\nIt was independently reported on 6 June 2026 by Feng Xue.\nThe fix was developed by Igor Ustinov.\n\n-- cut (non-publishing metadata for internal use) --\nReported by: Abhinav Agarwal, Feng Xue\nFixed by: Igor Ustinov"}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-54875","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-54875","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54875","cwe":"CWE-208","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54875","date":"2026-10-27","epss":0.00479,"percentile":0.41109}],"risk":0.16046499999999997,"urls":[],"severity":"Low","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-54875","description":"Issue summary: A non-constant-time optimized implementation of scalar point multiplication is used for SM2 private key operations on ARM64 and RISC-V platforms.  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OpenSSL 3.6 users should upgrade to OpenSSL 3.6.5. OpenSSL 3.5 users should upgrade to OpenSSL 3.5.9. OpenSSL 3.4 users should upgrade to OpenSSL 3.4.8.  This issue was reported on 2 May 2026 by Abhinav Agarwal. It was independently reported on 6 June 2026 by Feng Xue. 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The execution\ntime and the cache-access pattern therefore depend on the long-term private\nkey (during SM2 decryption) or the per-signature nonce (during SM2 signature\ngeneration), forming a timing and cache side-channel.\n\nFIPS Impact: no\nSM2 is not a FIPS algorithm and the optimized SM2 implementation is not part\nof the FIPS module.\n\nOpenSSL 4.0, 3.6, 3.5 and 3.4 are vulnerable to this issue on AArch64 and\nRISC-V.\n\nOpenSSL 3.0, 1.1.1 and 1.0.2 are not affected by this issue.\n\nOpenSSL 4.0 users should upgrade to OpenSSL 4.0.3.\nOpenSSL 3.6 users should upgrade to OpenSSL 3.6.5.\nOpenSSL 3.5 users should upgrade to OpenSSL 3.5.9.\nOpenSSL 3.4 users should upgrade to OpenSSL 3.4.8.\n\nThis issue was reported on 2 May 2026 by Abhinav Agarwal.\nIt was independently reported on 6 June 2026 by Feng Xue.\nThe fix was developed by Igor Ustinov.\n\n-- cut (non-publishing metadata for internal use) --\nReported by: Abhinav Agarwal, Feng Xue\nFixed by: Igor 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Impact summary: An attacker able to measure signing times may learn information about the per-signature secret nonce, which over many signatures can, via a lattice / Hidden Number Problem attack, lead to recovery of the private key.  CWE: CWE-208: Observable Timing Discrepancy  Description: The generic elliptic-curve scalar multiplication used for curves that do not have a dedicated constant-time implementation pads the secret scalar with non-constant-time BIGNUM operations, so the time taken depends on the value of the secret scalar derived from the ECDSA and SM2 nonce.  The leak is very small; observing it requires a large number of measurements. The effect is largest for curves whose group order lies on a machine-word boundary, such as brainpoolP384r1.  Applications using ECDSA signing over the Brainpool and other generic prime curves, and SM2 signing on platforms that use the generic implementation, are vulnerable to this issue.  The NIST curves P-256, P-384 and P-521 use dedicated constant-time implementations and are not affected.  FIPS Impact: no The FIPS modules are not affected: the approved NIST curves used in the FIPS provider have dedicated constant-time implementations and do not use the affected code path."},"relatedVulnerabilities":[{"id":"CVE-2026-54872","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54872","cwe":"CWE-208","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54872","date":"2026-10-27","epss":0.00428,"percentile":0.36825}],"urls":["https://github.com/openssl/openssl/commit/1a5bee8dc57430a2be69cd1ffe7fec6a62f4f179","https://github.com/openssl/openssl/commit/3f7e1363dccec6f7732bb9e9fa471bb6e4aa68cb","https://github.com/openssl/openssl/commit/7d83bc7764999dfd91b83b4f0815b45390422afd","https://github.com/openssl/openssl/commit/8166827a78aad164a07aa86dea2b425403ced471","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"Low","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-54872","description":"Issue summary: The generic elliptic-curve scalar multiplication used for\nECDSA and SM2 signature operations with curves that do not have a dedicated\nimplementation leaks information about the secret nonce through timing.\n\nImpact summary: An attacker able to measure signing times may learn\ninformation about the per-signature secret nonce, which over many signatures\ncan, via a lattice / Hidden Number Problem attack, lead to recovery of the\nprivate key.\n\nCWE: CWE-208: Observable Timing Discrepancy\n\nDescription: The generic elliptic-curve scalar multiplication used for\ncurves that do not have a dedicated constant-time implementation pads the\nsecret scalar with non-constant-time BIGNUM operations, so the time taken\ndepends on the value of the secret scalar derived from the ECDSA and SM2 nonce.\n\nThe leak is very small; observing it requires a large number of\nmeasurements. The effect is largest for curves whose group order lies\non a machine-word boundary, such as brainpoolP384r1.\n\nApplications using ECDSA signing over the Brainpool and other generic prime\ncurves, and SM2 signing on platforms that use the generic implementation,\nare vulnerable to this issue.\n\nThe NIST curves P-256, P-384 and P-521 use dedicated constant-time\nimplementations and are not affected.\n\nFIPS Impact: no\nThe FIPS modules are not affected: the approved NIST curves used in the FIPS\nprovider have dedicated constant-time implementations and do not use the\naffected code path."}]},{"artifact":{"id":"845e432946903f1a","cpes":["cpe:2.3:a:libssl3t64:libssl3t64:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"libssl3t64","purl":"pkg:deb/debian/libssl3t64@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/libssl3t64/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/libssl3t64/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/libssl3t64:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-54872","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-54872","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54872","cwe":"CWE-208","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54872","date":"2026-10-27","epss":0.00428,"percentile":0.36825}],"risk":0.14337999999999998,"urls":[],"severity":"Low","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-54872","description":"Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing.  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The NIST curves P-256, P-384 and P-521 use dedicated constant-time implementations and are not affected.  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The effect is largest for curves whose group order lies\non a machine-word boundary, such as brainpoolP384r1.\n\nApplications using ECDSA signing over the Brainpool and other generic prime\ncurves, and SM2 signing on platforms that use the generic implementation,\nare vulnerable to this issue.\n\nThe NIST curves P-256, P-384 and P-521 use dedicated constant-time\nimplementations and are not affected.\n\nFIPS Impact: no\nThe FIPS modules are not affected: the approved NIST curves used in the FIPS\nprovider have dedicated constant-time implementations and do not use the\naffected code path."}]},{"artifact":{"id":"bfbd23c4e3442e8e","cpes":["cpe:2.3:a:openssl:openssl:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl","purl":"pkg:deb/debian/openssl@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl/copyright","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/usr/share/doc/openssl/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.conffiles","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.conffiles","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.md5sums","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl.list","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.list"},{"path":"/var/lib/dpkg/info/openssl.postinst","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/info/openssl.postinst"}],"upstreams":[]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-direct-match","found":{"vulnerabilityID":"CVE-2026-54872","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-54872","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54872","cwe":"CWE-208","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54872","date":"2026-10-27","epss":0.00428,"percentile":0.36825}],"risk":0.14337999999999998,"urls":[],"severity":"Low","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-54872","description":"Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing.  Impact summary: An attacker able to measure signing times may learn information about the per-signature secret nonce, which over many signatures can, via a lattice / Hidden Number Problem attack, lead to recovery of the private key.  CWE: CWE-208: Observable Timing Discrepancy  Description: The generic elliptic-curve scalar multiplication used for curves that do not have a dedicated constant-time implementation pads the secret scalar with non-constant-time BIGNUM operations, so the time taken depends on the value of the secret scalar derived from the ECDSA and SM2 nonce.  The leak is very small; observing it requires a large number of measurements. The effect is largest for curves whose group order lies on a machine-word boundary, such as brainpoolP384r1.  Applications using ECDSA signing over the Brainpool and other generic prime curves, and SM2 signing on platforms that use the generic implementation, are vulnerable to this issue.  The NIST curves P-256, P-384 and P-521 use dedicated constant-time implementations and are not affected.  FIPS Impact: no The FIPS modules are not affected: the approved NIST curves used in the FIPS provider have dedicated constant-time implementations and do not use the affected code path."},"relatedVulnerabilities":[{"id":"CVE-2026-54872","cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54872","cwe":"CWE-208","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54872","date":"2026-10-27","epss":0.00428,"percentile":0.36825}],"urls":["https://github.com/openssl/openssl/commit/1a5bee8dc57430a2be69cd1ffe7fec6a62f4f179","https://github.com/openssl/openssl/commit/3f7e1363dccec6f7732bb9e9fa471bb6e4aa68cb","https://github.com/openssl/openssl/commit/7d83bc7764999dfd91b83b4f0815b45390422afd","https://github.com/openssl/openssl/commit/8166827a78aad164a07aa86dea2b425403ced471","https://openssl-library.org/news/secadv/20260929.txt"],"severity":"Low","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-54872","description":"Issue summary: The generic elliptic-curve scalar multiplication used for\nECDSA and SM2 signature operations with curves that do not have a dedicated\nimplementation leaks information about the secret nonce through timing.\n\nImpact summary: An attacker able to measure signing times may learn\ninformation about the per-signature secret nonce, which over many signatures\ncan, via a lattice / Hidden Number Problem attack, lead to recovery of the\nprivate key.\n\nCWE: CWE-208: Observable Timing Discrepancy\n\nDescription: The generic elliptic-curve scalar multiplication used for\ncurves that do not have a dedicated constant-time implementation pads the\nsecret scalar with non-constant-time BIGNUM operations, so the time taken\ndepends on the value of the secret scalar derived from the ECDSA and SM2 nonce.\n\nThe leak is very small; observing it requires a large number of\nmeasurements. The effect is largest for curves whose group order lies\non a machine-word boundary, such as brainpoolP384r1.\n\nApplications using ECDSA signing over the Brainpool and other generic prime\ncurves, and SM2 signing on platforms that use the generic implementation,\nare vulnerable to this issue.\n\nThe NIST curves P-256, P-384 and P-521 use dedicated constant-time\nimplementations and are not affected.\n\nFIPS Impact: no\nThe FIPS modules are not affected: the approved NIST curves used in the FIPS\nprovider have dedicated constant-time implementations and do not use the\naffected code path."}]},{"artifact":{"id":"83b15e7189f2cb72","cpes":["cpe:2.3:a:openssl-provider-legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider-legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider_legacy:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl-provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl_provider:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl-provider-legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*","cpe:2.3:a:openssl:openssl_provider_legacy:3.5.5-1\\~deb13u2:*:*:*:*:*:*:*"],"name":"openssl-provider-legacy","purl":"pkg:deb/debian/openssl-provider-legacy@3.5.5-1~deb13u2?arch=amd64&distro=debian-13.4&upstream=openssl","type":"deb","version":"3.5.5-1~deb13u2","language":"","licenses":["Apache-2.0","Artistic","GPL-1","GPL-1+"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/openssl-provider-legacy/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/openssl-provider-legacy/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/openssl-provider-legacy.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/openssl-provider-legacy.list"}],"upstreams":[{"name":"openssl"}]},"matchDetails":[{"fix":{"suggestedVersion":"3.5.7-1~deb13u3"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-54872","versionConstraint":"< 3.5.7-1~deb13u3 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"openssl","version":"3.5.5-1~deb13u2"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-54872","fix":{"state":"fixed","versions":["3.5.7-1~deb13u3"],"available":[{"date":"2026-09-30","kind":"advisory","version":"3.5.7-1~deb13u3"}]},"cvss":[{"type":"Secondary","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","metrics":{"baseScore":3.7,"impactScore":1.5,"exploitabilityScore":2.3},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-54872","cwe":"CWE-208","type":"Secondary","source":"openssl-security@openssl.org"}],"epss":[{"cve":"CVE-2026-54872","date":"2026-10-27","epss":0.00428,"percentile":0.36825}],"risk":0.14337999999999998,"urls":[],"severity":"Low","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6531-1","link":"https://security-tracker.debian.org/tracker/DSA-6531-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-54872","description":"Issue summary: The generic elliptic-curve scalar multiplication used for ECDSA and SM2 signature operations with curves that do not have a dedicated implementation leaks information about the secret nonce through timing.  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The NIST curves P-256, P-384 and P-521 use dedicated constant-time implementations and are not affected.  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malicious DNS server returns too large a response  for a DNS query, resulting in degraded DNS resolution for the system.    Exploitation of this bug needs a system that has nscd enabled and using  an untrusted DNS server for name resolution, with the compromised DNS  server being capable of processing records large enough to result in a  stack overflow in an nscd thread stack.  During experimentation, bind 9  was unable to handle large records, but that could change in future or  with a different name server.  In typical installations, nscd is  executed in an isolated context as its own user without a shell, due to  which any compromise of that service is isolated.    There is a remote possibility of nscd cache corruption if an attacker  manages to get the stack pointer into a desired point in the heap,  potentially resulting in other caches in nscd being overwritten with  corrupt data through the stack overflow, until the buggy code path  eventually results in a crash.    Finally, a crash in nscd may result in performance degradation when  resolving names, but it does not result in a denial of service."},"relatedVulnerabilities":[{"id":"CVE-2026-89092","cvss":[{"type":"Secondary","source":"3ff69d7a-14f2-4f67-a097-88dee7810d18","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L","metrics":{"baseScore":4.2,"impactScore":2.6,"exploitabilityScore":1.7},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-89092","cwe":"CWE-789","type":"Secondary","source":"3ff69d7a-14f2-4f67-a097-88dee7810d18"}],"epss":[{"cve":"CVE-2026-89092","date":"2026-10-27","epss":0.0024,"percentile":0.15015}],"urls":["https://sourceware.org/bugzilla/show_bug.cgi?id=34624","https://sourceware.org/git/?p=glibc.git;a=blob_plain;f=advisories/GLIBC-SA-2026-0016","http://www.openwall.com/lists/oss-security/2026/09/11/2"],"severity":"Medium","namespace":"nvd:cpe","dataSource":"https://nvd.nist.gov/vuln/detail/CVE-2026-89092","description":"The nscd service in the GNU C Library 2.3.4 onwards may crash due to a \nstack overflow when a malicious DNS server returns too large a response \nfor a DNS query, resulting in degraded DNS resolution for the system.\n\n\n\nExploitation of this bug needs a system that has nscd enabled and using \nan untrusted DNS server for name resolution, with the compromised DNS \nserver being capable of processing records large enough to result in a \nstack overflow in an nscd thread stack.  During experimentation, bind 9 \nwas unable to handle large records, but that could change in future or \nwith a different name server.  In typical installations, nscd is \nexecuted in an isolated context as its own user without a shell, due to \nwhich any compromise of that service is isolated.\n\n\n\nThere is a remote possibility of nscd cache corruption if an attacker \nmanages to get the stack pointer into a desired point in the heap, \npotentially resulting in other caches in nscd being overwritten with \ncorrupt data through the stack overflow, until the buggy code path \neventually results in a crash.\n\n\n\nFinally, a crash in nscd may result in performance degradation when \nresolving names, but it does not result in a denial of service."}]},{"artifact":{"id":"15791da16e435065","cpes":["cpe:2.3:a:bsdutils:bsdutils:1\\:2.41-5:*:*:*:*:*:*:*"],"name":"bsdutils","purl":"pkg:deb/debian/bsdutils@1%3A2.41-5?arch=amd64&distro=debian-13.4&upstream=util-linux%402.41-5","type":"deb","version":"1:2.41-5","language":"","licenses":["BSD-2-clause","BSD-3-clause","BSD-4-clause","BSLA","Expat","GPL-2","GPL-2+","GPL-3","GPL-3+","ISC","LGPL","LGPL-2","LGPL-2+","LGPL-2.1","LGPL-2.1+","LGPL-3","LGPL-3+","public-domain"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/bsdutils/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/bsdutils/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/bsdutils.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/bsdutils.md5sums","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/bsdutils.list","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/bsdutils.list"}],"upstreams":[{"name":"util-linux","version":"2.41-5"}]},"matchDetails":[{"fix":{"suggestedVersion":"2.41.5-0+deb13u1"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-53612","versionConstraint":"< 2.41.5-0+deb13u1 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"util-linux","version":"2.41-5"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-53612","fix":{"state":"fixed","versions":["2.41.5-0+deb13u1"],"available":[{"date":"2026-08-14","kind":"advisory","version":"2.41.5-0+deb13u1"}]},"cvss":[{"type":"Secondary","source":"security-advisories@github.com","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":7,"impactScore":5.9,"exploitabilityScore":1.1},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-53612","cwe":"CWE-367","type":"Secondary","source":"security-advisories@github.com"}],"epss":[{"cve":"CVE-2026-53612","date":"2026-10-27","epss":0.00152,"percentile":0.04295}],"risk":0.1102,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6442-1","link":"https://security-tracker.debian.org/tracker/DSA-6442-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-53612","description":"util-linux is a random collection of Linux utilities. 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This issue is fixed in 2.41.5 and 2.42.2."}]},{"artifact":{"id":"82f554653d484779","cpes":["cpe:2.3:a:liblastlog2-2:liblastlog2-2:2.41-5:*:*:*:*:*:*:*","cpe:2.3:a:liblastlog2-2:liblastlog2_2:2.41-5:*:*:*:*:*:*:*","cpe:2.3:a:liblastlog2_2:liblastlog2-2:2.41-5:*:*:*:*:*:*:*","cpe:2.3:a:liblastlog2_2:liblastlog2_2:2.41-5:*:*:*:*:*:*:*","cpe:2.3:a:liblastlog2:liblastlog2-2:2.41-5:*:*:*:*:*:*:*","cpe:2.3:a:liblastlog2:liblastlog2_2:2.41-5:*:*:*:*:*:*:*"],"name":"liblastlog2-2","purl":"pkg:deb/debian/liblastlog2-2@2.41-5?arch=amd64&distro=debian-13.4&upstream=util-linux","type":"deb","version":"2.41-5","language":"","licenses":["BSD-2-clause","BSD-3-clause","BSD-4-clause","BSLA","Expat","GPL-2","GPL-2+","GPL-3","GPL-3+","ISC","LGPL","LGPL-2","LGPL-2+","LGPL-2.1","LGPL-2.1+","LGPL-3","LGPL-3+","public-domain"],"locations":[{"path":"/var/lib/dpkg/status","layerID":"sha256:375efc829fbd57c28294ba22e81699b7e02ce54edc538f143136a3fc7f9f8767","accessPath":"/var/lib/dpkg/status","annotations":{"evidence":"primary"}},{"path":"/usr/share/doc/liblastlog2-2/copyright","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/usr/share/doc/liblastlog2-2/copyright","annotations":{"evidence":"supporting"}},{"path":"/var/lib/dpkg/info/liblastlog2-2:amd64.md5sums","layerID":"sha256:8c453430fd692e7aaf84581a3c0dcef19dffc910c9c073ecb633c4109039d1b3","accessPath":"/var/lib/dpkg/info/liblastlog2-2:amd64.md5sums","annotations":{"evidence":"supporting"}}],"upstreams":[{"name":"util-linux"}]},"matchDetails":[{"fix":{"suggestedVersion":"2.41.5-0+deb13u1"},"type":"exact-indirect-match","found":{"vulnerabilityID":"CVE-2026-53612","versionConstraint":"< 2.41.5-0+deb13u1 (deb)"},"matcher":"dpkg-matcher","searchedBy":{"distro":{"type":"debian","version":"13.4"},"package":{"name":"util-linux","version":"2.41-5"},"namespace":"debian:distro:debian:13"}}],"vulnerability":{"id":"CVE-2026-53612","fix":{"state":"fixed","versions":["2.41.5-0+deb13u1"],"available":[{"date":"2026-08-14","kind":"advisory","version":"2.41.5-0+deb13u1"}]},"cvss":[{"type":"Secondary","source":"security-advisories@github.com","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","metrics":{"baseScore":7,"impactScore":5.9,"exploitabilityScore":1.1},"version":"3.1","vendorMetadata":{}}],"cwes":[{"cve":"CVE-2026-53612","cwe":"CWE-367","type":"Secondary","source":"security-advisories@github.com"}],"epss":[{"cve":"CVE-2026-53612","date":"2026-10-27","epss":0.00152,"percentile":0.04295}],"risk":0.1102,"urls":[],"severity":"High","namespace":"debian:distro:debian:13","advisories":[{"id":"DSA-6442-1","link":"https://security-tracker.debian.org/tracker/DSA-6442-1"}],"dataSource":"https://security-tracker.debian.org/tracker/CVE-2026-53612","description":"util-linux is a random collection of Linux utilities. 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The printf builtin reserves four bytes before converting a Unicode \\u or \\U escape, but the multi-byte token can need five or six bytes. 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When built without libc fnmatch, the internal pmatch() matcher implements * by unbounded recursion over candidate positions. 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