Bug 2508372 - CVE-2026-56407 mingw-expat: libexpat: Arbitrary code execution due to integer overflow [fedora-all]
Summary: CVE-2026-56407 mingw-expat: libexpat: Arbitrary code execution due to integer...
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Fedora
Classification: Fedora
Component: mingw-expat
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Richard W.M. Jones
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["80736bdb-3066-44c9-be12-5...
Depends On:
Blocks: CVE-2026-56407
TreeView+ depends on / blocked
 
Reported: 2026-07-29 11:12 UTC by Srikanth Balasubramanian
Modified: 2026-07-29 17:33 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2026-07-29 17:33:59 UTC
Type: ---
Embargoed:

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Description Srikanth Balasubramanian 2026-07-29 11:12:16 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

libexpat before 2.8.2 has an integer overflow in doProlog that is related to storeEntityValue and entity textLen.
Comment 1 Sandro Mani 2026-07-29 17:33:59 UTC 
All current releases are on mingw-expat-2.8.2.
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