{ "document": { "aggregate_severity": { "text": "Critical" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" }, { "category": "details", "text": "CVE-2026-89161: leak and later invalid free of a copied subject when\n pcre2_jit_match() reuses a match data block previously used with\n PCRE2_COPY_MATCHED_SUBJECT (upstream fb466796)\n- CVE-2026-89156: out-of-bounds read in pcre2_match() on invalid UTF subjects\n when JIT fallback to the interpreter skipped the UTF validation\n (upstream dfa2ad86)\n- CVE-2026-89157: out-of-bounds heap write in pcre2_pattern_convert() from an\n overflowed output allocation size with large patterns on 32-bit size_t\n (upstream 41e7f679)\n- CVE-2026-89158: out-of-bounds heap write in pcre2_compile_32() from integer\n overflows in the compiled pattern length computation on 32-bit platforms\n (upstream 3d7dcbfc)", "title": "Details" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "https://cve.tuxcare.com/els/releases/CLSA-2026:1789573344", "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1789573344" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/tuxcare9.6esu/advisories/2026/clsa-2026_1789573344.json" } ], "tracking": { "current_release_date": "2026-09-16T15:43:19Z", "generator": { "date": "2026-09-16T15:43:19Z", "engine": { "name": "pyCSAF" } }, "id": "CLSA-2026:1789573344", "initial_release_date": "2026-09-16T15:43:19Z", "revision_history": [ { "date": "2026-09-16T15:43:19Z", "number": "1", "summary": "Initial version" } ], "status": "final", "version": "1" }, "title": "pcre2: Fix of 4 CVEs" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "AlmaLinux 9.6", "product": { "name": "AlmaLinux 9.6", 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"CWE-590", "name": "Free of Memory not on the Heap" }, "notes": [ { "category": "description", "text": "In PCRE2 before 10.48, pcre2_jit_match mishandles a previously copied subject being passed in as a context. An incorrect free operation can occur.", "title": "Vulnerability description" } ], "product_status": { "fixed": [ "AlmaLinux-9.6:pcre2-0:10.40-6.el9.tuxcare.els2.i686", "AlmaLinux-9.6:pcre2-0:10.40-6.el9.tuxcare.els2.x86_64", "AlmaLinux-9.6:pcre2-devel-0:10.40-6.el9.tuxcare.els2.i686", "AlmaLinux-9.6:pcre2-devel-0:10.40-6.el9.tuxcare.els2.x86_64", "AlmaLinux-9.6:pcre2-static-0:10.40-6.el9.tuxcare.els2.x86_64", "AlmaLinux-9.6:pcre2-syntax-0:10.40-6.el9.tuxcare.els2.noarch", "AlmaLinux-9.6:pcre2-tools-0:10.40-6.el9.tuxcare.els2.x86_64", "AlmaLinux-9.6:pcre2-utf16-0:10.40-6.el9.tuxcare.els2.i686", "AlmaLinux-9.6:pcre2-utf16-0:10.40-6.el9.tuxcare.els2.x86_64", "AlmaLinux-9.6:pcre2-utf32-0:10.40-6.el9.tuxcare.els2.i686", "AlmaLinux-9.6:pcre2-utf32-0:10.40-6.el9.tuxcare.els2.x86_64", "Rocky Linux-9.6:pcre2-0:10.40-6.el9.tuxcare.els2.i686", "Rocky Linux-9.6:pcre2-0:10.40-6.el9.tuxcare.els2.x86_64", "Rocky Linux-9.6:pcre2-devel-0:10.40-6.el9.tuxcare.els2.i686", "Rocky 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"Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-89161" }, { "category": "external", "summary": "https://github.com/PCRE2Project/pcre2/pull/937", "url": "https://github.com/PCRE2Project/pcre2/pull/937" }, { "category": "external", "summary": "https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48", "url": "https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48" } ], "release_date": "2026-09-11T04:18:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-09-16T15:42:25.579607Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1789573344", "product_ids": [ "AlmaLinux-9.6:pcre2-0:10.40-6.el9.tuxcare.els2.i686", "AlmaLinux-9.6:pcre2-0:10.40-6.el9.tuxcare.els2.x86_64", "AlmaLinux-9.6:pcre2-devel-0:10.40-6.el9.tuxcare.els2.i686", "AlmaLinux-9.6:pcre2-devel-0:10.40-6.el9.tuxcare.els2.x86_64", "AlmaLinux-9.6:pcre2-static-0:10.40-6.el9.tuxcare.els2.x86_64", 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provide invalid UTF data.", "title": "Vulnerability description" } ], "product_status": { "fixed": [ "AlmaLinux-9.6:pcre2-0:10.40-6.el9.tuxcare.els2.i686", "AlmaLinux-9.6:pcre2-0:10.40-6.el9.tuxcare.els2.x86_64", "AlmaLinux-9.6:pcre2-devel-0:10.40-6.el9.tuxcare.els2.i686", "AlmaLinux-9.6:pcre2-devel-0:10.40-6.el9.tuxcare.els2.x86_64", "AlmaLinux-9.6:pcre2-static-0:10.40-6.el9.tuxcare.els2.x86_64", "AlmaLinux-9.6:pcre2-syntax-0:10.40-6.el9.tuxcare.els2.noarch", "AlmaLinux-9.6:pcre2-tools-0:10.40-6.el9.tuxcare.els2.x86_64", "AlmaLinux-9.6:pcre2-utf16-0:10.40-6.el9.tuxcare.els2.i686", "AlmaLinux-9.6:pcre2-utf16-0:10.40-6.el9.tuxcare.els2.x86_64", "AlmaLinux-9.6:pcre2-utf32-0:10.40-6.el9.tuxcare.els2.i686", "AlmaLinux-9.6:pcre2-utf32-0:10.40-6.el9.tuxcare.els2.x86_64", "Rocky Linux-9.6:pcre2-0:10.40-6.el9.tuxcare.els2.i686", "Rocky Linux-9.6:pcre2-0:10.40-6.el9.tuxcare.els2.x86_64", "Rocky Linux-9.6:pcre2-devel-0:10.40-6.el9.tuxcare.els2.i686", "Rocky 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"Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-89156" }, { "category": "external", "summary": "https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48", "url": "https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48" }, { "category": "external", "summary": "https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-2p8c-ff85-vh9x", "url": "https://github.com/PCRE2Project/pcre2/security/advisories/GHSA-2p8c-ff85-vh9x" } ], "release_date": "2026-09-11T04:18:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-09-16T15:42:25.579607Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1789573344", "product_ids": [ "AlmaLinux-9.6:pcre2-0:10.40-6.el9.tuxcare.els2.i686", "AlmaLinux-9.6:pcre2-0:10.40-6.el9.tuxcare.els2.x86_64", "AlmaLinux-9.6:pcre2-devel-0:10.40-6.el9.tuxcare.els2.i686", "AlmaLinux-9.6:pcre2-devel-0:10.40-6.el9.tuxcare.els2.x86_64", 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32-bit platforms, has a pcre2_pattern_convert out-of-bounds write when an attacker can provide a large pattern.", "title": "Vulnerability description" } ], "product_status": { "fixed": [ "AlmaLinux-9.6:pcre2-0:10.40-6.el9.tuxcare.els2.i686", "AlmaLinux-9.6:pcre2-0:10.40-6.el9.tuxcare.els2.x86_64", "AlmaLinux-9.6:pcre2-devel-0:10.40-6.el9.tuxcare.els2.i686", "AlmaLinux-9.6:pcre2-devel-0:10.40-6.el9.tuxcare.els2.x86_64", "AlmaLinux-9.6:pcre2-static-0:10.40-6.el9.tuxcare.els2.x86_64", "AlmaLinux-9.6:pcre2-syntax-0:10.40-6.el9.tuxcare.els2.noarch", "AlmaLinux-9.6:pcre2-tools-0:10.40-6.el9.tuxcare.els2.x86_64", "AlmaLinux-9.6:pcre2-utf16-0:10.40-6.el9.tuxcare.els2.i686", "AlmaLinux-9.6:pcre2-utf16-0:10.40-6.el9.tuxcare.els2.x86_64", "AlmaLinux-9.6:pcre2-utf32-0:10.40-6.el9.tuxcare.els2.i686", "AlmaLinux-9.6:pcre2-utf32-0:10.40-6.el9.tuxcare.els2.x86_64", "Rocky Linux-9.6:pcre2-0:10.40-6.el9.tuxcare.els2.i686", "Rocky Linux-9.6:pcre2-0:10.40-6.el9.tuxcare.els2.x86_64", "Rocky 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