Bug 2449726

Summary: CVE-2026-4519 python3.10: Python: Command-line option injection in webbrowser.open() via crafted URLs [fedora-all]
Product: [Fedora] Fedora Reporter: Jon Moroney <jmoroney>
Component: python3.10Assignee: Python Maintainers <python-maint>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: 45CC: cstratak, mhroncok, python-maint, python-packagers-sig, thrnciar, torsava, vstinner
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["3ad97ffe-db31-4bd1-bd23-0159ea242fab"]}
Fixed In Version: python3.10-3.10.21-1.fc43 python3.10-3.10.21-1.fc44 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-08-26 01:03:30 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: 2449649    

Description Jon Moroney 2026-03-20 20:01:22 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 2026-08-17 13:48:28 UTC
FEDORA-2026-a64a31b855 (python3.10-3.10.21-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-a64a31b855

Comment 2 Aoife Moloney 2026-08-17 14:21:33 UTC
This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle.
Changing version to 45.

Comment 3 Fedora Update System 2026-08-17 16:19:42 UTC
FEDORA-2026-7ef4d2b23d (python3.10-3.10.21-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-7ef4d2b23d

Comment 4 Fedora Update System 2026-08-18 01:30:54 UTC
FEDORA-2026-7ef4d2b23d 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-2026-7ef4d2b23d`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-7ef4d2b23d

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

Comment 5 Fedora Update System 2026-08-18 01:56:37 UTC
FEDORA-2026-a64a31b855 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-a64a31b855`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-a64a31b855

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

Comment 6 Fedora Update System 2026-08-26 01:03:30 UTC
FEDORA-2026-a64a31b855 (python3.10-3.10.21-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 7 Fedora Update System 2026-08-26 01:13:09 UTC
FEDORA-2026-7ef4d2b23d (python3.10-3.10.21-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.