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CVE-2026-56131

MEDIUM CVSS: 4.9 Published: 2026-06-19 Modified: 2026-06-23

Description

libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_ResumeParser from within handlers in cases of a policy violation. Thus, a use-after-free can occur (similar to the CVE-2026-50219 situation).

Affected Platforms

Libexpat Project Libexpat

Weakness Type

CWE-416

References