Bug 2489149

Summary: CVE-2026-41148 python-jupytext: Mermaid: CSS injection vulnerability allows page defacement and information disclosure [fedora-all]
Product: [Fedora] Fedora Reporter: Vipul Nair <vinair>
Component: python-jupytextAssignee: Jerry James <loganjerry>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: loganjerry
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["b9e0bc44-0d61-4fe9-8487-7444f795a2f8"]}
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-06-16 14:57:00 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2480858    

Description Vipul Nair 2026-06-16 12:23:00 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 Jerry James 2026-06-16 14:57:00 UTC
CVE-2026-41148 affects mermaid versions < 10.9.5 and versions 11.0.0-alpha1 through 11.12.0.  The python-jupytext package has version 11.15.0 in all supported Fedora releases.