Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
SHLOMIF XML::LibXML
Default version status: unaffected
0 to ≤ 2.0210affected
References
- https://github.com/cpan-authors/XML-LibXML/issues/146 ↗
- https://github.com/cpan-authors/XML-LibXML/pull/149 ↗
- https://github.com/cpan-authors/XML-LibXML/commit/15652bd905a6c9dda59a81b14d4766adbbae2ea8.patch ↗
- http://www.openwall.com/lists/oss-security/2026/05/10/8 ↗
- http://www.openwall.com/lists/oss-security/2026/05/11/2 ↗
- https://access.redhat.com/security/cve/CVE-2026-8177 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=2468684 ↗
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8177.json ↗
- https://access.redhat.com/errata/RHSA-2026:68632 ↗
- https://access.redhat.com/errata/RHSA-2026:39547 ↗
- https://access.redhat.com/errata/RHSA-2026:39878 ↗
- https://access.redhat.com/errata/RHSA-2026:68688 ↗
- https://access.redhat.com/errata/RHSA-2026:68685 ↗
- https://access.redhat.com/errata/RHSA-2026:68693 ↗
- https://access.redhat.com/errata/RHSA-2026:39553 ↗