Bug 2520125 (CVE-2026-76957) - CVE-2026-76957 libexpat: libexpat: Memory corruption vulnerability allows arbitrary code execution or denial of service
Summary: CVE-2026-76957 libexpat: libexpat: Memory corruption vulnerability allows arb...
Keywords:
Status: NEW
Alias: CVE-2026-76957
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2524648 2524649
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-20 04:41 UTC by OSIDB Bzimport
Modified: 2026-08-26 19:39 UTC (History)
27 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-08-20 04:41:20 UTC 
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.
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