Bug 2421935

Summary: CVE-2025-67726 python-flit: Tornado Quadratic DoS via Crafted Multipart Parameters [fedora-42]
Product: [Fedora] Fedora Reporter: Jon Moroney <jmoroney>
Component: python-flitAssignee: Maxwell G <maxwell>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 42CC: epel-packagers-sig, maxwell, michel, python-packagers-sig
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["6b7c1dfb-4271-490a-a1c2-5de19d141a60"]}
Fixed In Version: Doc Type: ---
Doc Text:
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Clone Of: Environment:
Last Closed: 2026-02-27 20:46:16 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: 2173769, 2421733    

Description Jon Moroney 2025-12-12 22:18:37 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.

The following link provides references to all essential vulnerability management information. If something is wrong or missing, please contact a member of PSIRT.
https://spaces.redhat.com/display/PRODSEC/Vulnerability+Management+-+Essential+Documents+for+Engineering+Teams
Comment 1 Maxwell G 2026-02-27 20:46:16 UTC 
python-flit does not use tornado at all, and even if it did, tornado CVEs would need to be fixed in that package, not here.