{ "document": { "aggregate_severity": { "text": "Important" }, "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-2026-8177: fix out-of-bounds read on truncated multi-byte UTF-8 node names\n (replace hand-rolled domParseChar with libxml2 xmlValidateName)", "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-2026:1784553427", "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1784553427" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/almalinux9.2esu/advisories/2026/clsa-2026_1784553427.json" } ], "tracking": { "current_release_date": "2026-07-20T13:18:03Z", "generator": { "date": "2026-07-20T13:18:03Z", "engine": { "name": "pyCSAF" } }, "id": "CLSA-2026:1784553427", "initial_release_date": "2026-07-20T13:18:03Z", "revision_history": [ { "date": "2026-07-20T13:18:03Z", "number": "1", "summary": "Initial version" } ], "status": "final", "version": "1" }, "title": "perl-XML-LibXML: Fix of CVE-2026-8177" }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "AlmaLinux 9.2", "product": { "name": "AlmaLinux 9.2", "product_id": "AlmaLinux-9.2", "product_identification_helper": { "cpe": "cpe:2.3:o:almalinux:almalinux:9.2:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "AlmaLinux" } ], "category": "vendor", "name": "AlmaLinux OS Foundation" }, { "branches": [ { "branches": [ { "category": "product_version", "name": "perl-XML-LibXML-1:2.0206-5.el9.tuxcare.els1.x86_64", "product": { "name": "perl-XML-LibXML-1:2.0206-5.el9.tuxcare.els1.x86_64", "product_id": "perl-XML-LibXML-1:2.0206-5.el9.tuxcare.els1.x86_64", "product_identification_helper": { "purl": "pkg:rpm/tuxcare/perl-XML-LibXML@2.0206-5.el9.tuxcare.els1?arch=x86_64&epoch=1" } } } ], "category": "architecture", "name": "x86_64" } ], "category": "vendor", "name": "TuxCare" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "perl-XML-LibXML-1:2.0206-5.el9.tuxcare.els1.x86_64 as a component of AlmaLinux 9.2", "product_id": "AlmaLinux-9.2:perl-XML-LibXML-1:2.0206-5.el9.tuxcare.els1.x86_64" }, "product_reference": "perl-XML-LibXML-1:2.0206-5.el9.tuxcare.els1.x86_64", "relates_to_product_reference": "AlmaLinux-9.2" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-8177", "cwe": { "id": "CWE-125", "name": "Out-of-bounds Read" }, "notes": [ { "category": "description", "text": "XML::LibXML versions through 2.0210 for Perl read out-of-bounds heap memory when parsing XML node names containing truncated UTF-8 byte sequences.\n\nA node name ending in the middle of a multi byte UTF-8 sequence causes the parser to read past the end of the input string into adjacent heap memory.\n\nAny Perl process that passes attacker controlled strings to XML::LibXML's DOM node-name methods can reach this path on the default API. The likely consequence is a crash, causing denial of service.", "title": "Vulnerability description" } ], "product_status": { "fixed": [ "AlmaLinux-9.2:perl-XML-LibXML-1:2.0206-5.el9.tuxcare.els1.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2026-8177" }, { "category": "external", "summary": "https://github.com/cpan-authors/XML-LibXML/commit/15652bd905a6c9dda59a81b14d4766adbbae2ea8.patch", "url": "https://github.com/cpan-authors/XML-LibXML/commit/15652bd905a6c9dda59a81b14d4766adbbae2ea8.patch" }, { "category": "external", "summary": "https://github.com/cpan-authors/XML-LibXML/issues/146", "url": "https://github.com/cpan-authors/XML-LibXML/issues/146" }, { "category": "external", "summary": "https://github.com/cpan-authors/XML-LibXML/pull/149", "url": "https://github.com/cpan-authors/XML-LibXML/pull/149" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2026/05/10/8", "url": "http://www.openwall.com/lists/oss-security/2026/05/10/8" }, { "category": "external", "summary": "http://www.openwall.com/lists/oss-security/2026/05/11/2", "url": "http://www.openwall.com/lists/oss-security/2026/05/11/2" }, { "category": "external", "summary": "https://access.redhat.com/security/cve/CVE-2026-8177", "url": "https://access.redhat.com/security/cve/CVE-2026-8177" }, { "category": "external", "summary": "https://bugzilla.redhat.com/show_bug.cgi?id=2468684", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468684" }, { "category": "external", "summary": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8177.json", "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8177.json" } ], "release_date": "2026-05-10T21:16:00Z", "remediations": [ { "category": "vendor_fix", "date": "2026-07-20T13:17:12.687385Z", "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1784553427", "product_ids": [ "AlmaLinux-9.2:perl-XML-LibXML-1:2.0206-5.el9.tuxcare.els1.x86_64" ], "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1784553427" } ], "threats": [ { "category": "impact", "details": "Important" } ] } ] }