Bug 2448201

Summary: CVE-2026-4224 python3.13: Stack overflow parsing XML with deeply nested DTD content models [epel-all]
Product: [Fedora] Fedora EPEL Reporter: Jon Moroney <jmoroney>
Component: python3.13Assignee: Python Maintainers <python-maint>
Status: CLOSED CURRENTRELEASE QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: epel10CC: ksurma, lbalhar, mhroncok, python-maint, python-packagers-sig
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["b571fc48-3bad-406e-b9d0-df9975a34ae8"]}
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-04-27 07:10:12 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: 2448181    

Description Jon Moroney 2026-03-16 20:09:19 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 Lumír Balhar 2026-04-27 07:10:12 UTC 
This has been fixed upstream in 3.13.13, and we have that version in all EPELs.