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CVE-2026-86142 Details

In libxml2 before 2.15.4, there is a heap-based buffer overflow in xmlXPtrEvalXPtrPart because of xmlXPtrEval xpointer length saturation.

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:6.9 MEDIUMVector:CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

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URL	Source(s)	Tag(s)
https://github.com/GNOME/libxml2/commit/6b3a736c0edc74ceec3d82f5252499d7911b3a58	[email protected]	Patch
https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4	[email protected]	Release Notes
https://gitlab.gnome.org/GNOME/libxml2/-/work_items/1113	[email protected]	Vendor Advisory

CWE-ID	CWE Name	Source
CWE-122	Heap-based Buffer Overflow	[email protected]

Product	Versions
xmlsoft libxml2	< 2.15.4
CPE cpe:2.3:a:xmlsoft:libxml2:::::::: Remediation No remediation found in references.

3 change records found show changes

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