CVE-2026-86142

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

CVSS v3 6.9 MEDIUM

6.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.4 / Impact : 5.5

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/GNOME/libxml2/commit/6b3a736c0edc74ceec3d82f5252499d7911b3a58	Patch
https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4	Release Notes
https://gitlab.gnome.org/GNOME/libxml2/-/work_items/1113	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-09-05 05:17

Updated : 2026-09-15 19:35

NVD link : CVE-2026-86142

Mitre link : CVE-2026-86142

CVE.ORG link : CVE-2026-86142

JSON object : View

Products Affected

xmlsoft

libxml2

CWE

CWE-122

Heap-based Buffer Overflow

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