Bug 2459021

Summary: CVE-2026-41080 mingw-expat: libexpat: Denial of Service via hash flooding with crafted XML [fedora-all]
Product: [Fedora] Fedora Reporter: Marco Benatto <mbenatto>
Component: mingw-expatAssignee: Richard W.M. Jones <rjones>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: low    
Version: rawhideCC: manisandro, rjones
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["c54459d4-4dee-4846-9133-828562168531"]}
Fixed In Version: mingw-expat-2.8.1-1.fc44 mingw-expat-2.8.1-1.fc43 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-05-21 00:55:12 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2458967    

Description Marco Benatto 2026-04-16 19:44:15 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.

Comment 1 Fedora Update System 2026-05-12 12:28:01 UTC
FEDORA-2026-9cf92027ec (mingw-expat-2.8.1-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-9cf92027ec

Comment 2 Fedora Update System 2026-05-13 23:30:38 UTC
FEDORA-2026-9cf92027ec has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-9cf92027ec`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-9cf92027ec

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 3 Fedora Update System 2026-05-13 23:40:53 UTC
FEDORA-2026-163d1fe6c0 has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-163d1fe6c0`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-163d1fe6c0

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 4 Fedora Update System 2026-05-21 00:55:12 UTC
FEDORA-2026-163d1fe6c0 (mingw-expat-2.8.1-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 5 Fedora Update System 2026-05-21 01:27:35 UTC
FEDORA-2026-9cf92027ec (mingw-expat-2.8.1-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.