Bug 2553403 - CVE-2026-56403 expat: libexpat: Arbitrary code execution due to integer overflow in storeAtts [fedora-44]
Summary: CVE-2026-56403 expat: libexpat: Arbitrary code execution due to integer overf...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: expat
Version: 44
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Tomas Korbar
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["a01ca437-c6de-4383-adbb-1...
Depends On:
Blocks: CVE-2026-56403
TreeView+ depends on / blocked
 
Reported: 2026-10-15 12:37 UTC by Avinash Hanwate
Modified: 2026-10-15 12:37 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type: ---
Embargoed:

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Description Avinash Hanwate 2026-10-15 12:37:47 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 storeAtts.
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