EUVD-2026-29000
GHSA-g5h8-x64v-qf5h
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
5DescriptionNVD
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.
A 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.
Any 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.
AnalysisAI
Out-of-bounds heap read in XML::LibXML for Perl (all versions through 2.0210) allows remote attackers to trigger denial-of-service crashes by supplying XML node names with truncated UTF-8 sequences. The parser fails to validate multi-byte UTF-8 boundaries in node names, reading past allocated memory into adjacent heap regions. …
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RemediationAI
Within 24 hours: identify all systems and applications using XML::LibXML for Perl through version 2.0210 via inventory and dependency scanning. Within 7 days: apply vendor-released patch via upstream commit 15652bd9 (upgrade to version 2.0211 or later); test in staging environment before production deployment. …
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