Bug 2447854

Summary: CVE-2026-31899 python-cairosvg: CairoSVG: Denial of Service via recursive <use> element amplification [fedora-all]
Product: [Fedora] Fedora Reporter: Sandipan Roy <saroy>
Component: python-cairosvgAssignee: Michel Lind <michel>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: fschwarz, michel, mkdocs-sig, ngompa13, orion, thunderbirdtr
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["5416eb48-f3f9-4878-9828-1619d0539bb7"]}
Fixed In Version: python-cairosvg-2.9.0-1.fc43 python-cairosvg-2.9.0-1.fc42 python-cairosvg-2.9.0-1.fc44 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-04-16 00:55:41 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: 2229363    
Bug Blocks: 2447447    

Description Sandipan Roy 2026-03-16 05:02:01 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 2026-04-15 14:40:18 UTC
FEDORA-2026-a2778fcae6 (python-cairosvg-2.9.0-1.fc42) has been submitted as an update to Fedora 42.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-a2778fcae6

Comment 2 Fedora Update System 2026-04-15 14:40:18 UTC
FEDORA-2026-ec61ca906c (python-cairosvg-2.9.0-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-ec61ca906c

Comment 3 Fedora Update System 2026-04-16 00:55:41 UTC
FEDORA-2026-ec61ca906c (python-cairosvg-2.9.0-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 4 Fedora Update System 2026-04-16 01:09:43 UTC
FEDORA-2026-a2778fcae6 (python-cairosvg-2.9.0-1.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 5 Fedora Update System 2026-04-16 01:39:24 UTC
FEDORA-2026-448e26a9c8 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-2026-448e26a9c8`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-448e26a9c8

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

Comment 6 Fedora Update System 2026-04-25 01:46:14 UTC
FEDORA-2026-448e26a9c8 (python-cairosvg-2.9.0-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.