CVE-2026-76957

Medium

Open

TLP:CLEAR

NVD CVE.org

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Description

libexpat before 2.8.4 lacks handler call depth tracking with custom encoding callbacks. Thus, a use-after-free can occur. NOTE: this is similar to CVE-2026-50219, CVE-2026-56131 and CVE-2026-56412.

Details

CVSS Score: 4.9
CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Confidence: 90%
Published: Aug 20, 2026
Last Modified: Aug 20, 2026

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