Bug 2491187 (CVE-2026-56406) - CVE-2026-56406 libexpat: libexpat: Arbitrary code execution via integer overflow in XML_ParseBuffer
Summary: CVE-2026-56406 libexpat: libexpat: Arbitrary code execution via integer overf...
Keywords:
Status: NEW
Alias: CVE-2026-56406
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: 2492043
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-21 16:01 UTC by OSIDB Bzimport
Modified: 2026-06-23 22:49 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-06-21 16:01:28 UTC 
libexpat before 2.8.2 has an integer overflow in XML_ParseBuffer because it lacked a check that was present in XML_Parse.
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