Bug 2567237

Summary: CVE-2026-115557 python3.16: Distrust compromised eMudhra intermediate certificates in Python ssl module [fedora-all]
Product: [Fedora] Fedora Reporter: Tomas Hoger <thoger>
Component: python3.16Assignee: Python Maintainers <python-maint>
Status: ASSIGNED --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: ksurma, mhroncok, python-maint, python-packagers-sig
Target Milestone: ---Keywords: Security, SecurityTracking
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Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["ce290549-9217-4667-b404-f41e99ec3db9"]}
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On:    
Bug Blocks: 2560301    

Description Tomas Hoger 2026-11-05 11:23:48 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.

Python has added a denylist for known compromised certificates to the "ssl" module to ensure user safety even without certificate revocation configured. Known compromised certificates will automatically be rejected regardless of the SSLContext policy configuration.
Comment 1 Miro Hrončok 2026-11-05 14:43:36 UTC 
This will be fixed when we rebase to 3.16.0a2