Bug 2448210 - CVE-2026-4224 python3.9: Stack overflow parsing XML with deeply nested DTD content models [fedora-all]
Summary: CVE-2026-4224 python3.9: Stack overflow parsing XML with deeply nested DTD co...
Keywords:
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: python3.9
Version: 45
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Nobody
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["b571fc48-3bad-406e-b9d0-d...
Depends On:
Blocks: CVE-2026-4224
TreeView+ depends on / blocked
 
Reported: 2026-03-16 20:10 UTC by Jon Moroney
Modified: 2026-08-17 14:20 UTC (History)
7 users (show)

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

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Description Jon Moroney 2026-03-16 20:10:10 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 Miro Hrončok 2026-03-18 13:26:22 UTC 
Due to a low CVSS score, we are not fixing this one in Python 3.9, which is included in Fedora only to allow testing against it.
Comment 2 Aoife Moloney 2026-08-17 14:20:05 UTC 
This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle.
Changing version to 45.
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