Security Advisory
CVE-2026-76957
4.9
MEDIUM
Vulnerability 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.
Published Date
August 20, 2026
Official Source
NIST NVD Advisory