CVE-2026-76957

MEDIUM CVSS 4.9 View on NVD ↗

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.

CVSS Vector

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

References

https://github.com/libexpat/libexpat/pull/1322
https://github.com/libexpat/libexpat/pull/1329

Published: Aug 20, 2026 05:16 UTC Modified: Aug 20, 2026 16:18 UTC