Bug 2457335

Summary: CVE-2026-35536 python-tornado: Tornado: Cookie attribute injection due to improper handling of cookie arguments [fedora-all]
Product: [Fedora] Fedora Reporter: Patrick Del Bello <pdelbell>
Component: python-tornadoAssignee: Robby Callicotte <rcallicotte>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: aurelien, gwync, mhroncok, orion, python-packagers-sig, rcallicotte
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["98eca926-78cf-473c-b4dc-931cf2d14d0d"]}
Fixed In Version: python-tornado-6.5.7-1.fc45 python-tornado-6.5.7-1.fc43 python-tornado-6.5.7-1.fc44 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-07-03 15:27:45 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: 2454716    

Description Patrick Del Bello 2026-04-10 16:28:56 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 2026-07-03 15:22:04 UTC
FEDORA-2026-672e8e4169 (python-tornado-6.5.7-1.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-672e8e4169

Comment 2 Fedora Update System 2026-07-03 15:27:45 UTC
FEDORA-2026-672e8e4169 (python-tornado-6.5.7-1.fc45) has been pushed to the Fedora 45 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 3 Fedora Update System 2026-07-03 15:39:55 UTC
FEDORA-2026-0f40de2581 (python-tornado-6.5.7-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-0f40de2581

Comment 4 Fedora Update System 2026-07-03 15:39:55 UTC
FEDORA-2026-23656e6d2f (python-tornado-6.5.7-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-23656e6d2f

Comment 5 Fedora Update System 2026-07-04 01:28:44 UTC
FEDORA-2026-0f40de2581 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-2026-0f40de2581`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-0f40de2581

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

Comment 6 Fedora Update System 2026-07-04 01:47:01 UTC
FEDORA-2026-23656e6d2f 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-2026-23656e6d2f`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-23656e6d2f

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

Comment 7 Fedora Update System 2026-07-12 00:59:07 UTC
FEDORA-2026-23656e6d2f (python-tornado-6.5.7-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 8 Fedora Update System 2026-07-12 01:11:04 UTC
FEDORA-2026-0f40de2581 (python-tornado-6.5.7-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.