CVE-2026-86140

Published: Sep 5, 2026Modified: Sep 8, 2026

8.0

Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Exploitability: 2.5 / Impact: 5.5

Source: MITRE (Secondary)

Description

In libxml2 before 2.15.4, xmlSnprintfElements in valid.c has a strcat stack-based buffer overflow.

Related CWEs

Stack-based Buffer Overflow

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

References (2)

https://github.com/GNOME/libxml2/commit/d1686f91dbda141a752200419d35639fd6b38340

Source: cve@mitre.org

https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4

Source: cve@mitre.org

Timeline

No history available yet.