Bug 2461804

Summary:	CVE-2026-41680 python-jupytext: Marked: Denial of Service via specific input sequence [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Vipul Nair <vinair>
Component:	python-jupytext	Assignee:	Jerry James <loganjerry>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	loganjerry
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["9f765a72-8087-4527-9ce5-de5649b8c5e2"]}
Fixed In Version:		Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-05-08 01:44:24 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:	2461603

Description Vipul Nair 2026-04-25 11:59:07 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 2026-05-08 01:44:24 UTC

CVE-2026-41680 affects versions 18.0.0 and 18.0.1 of marked.  The python-jupytext package is currently built with version 16.4.2, before the bug was introduced.  Later versions are not backwards compatible with 16.4.2, so I have left it alone for now.

Also note that marked is used during the build only.  It is not included in the binary python3-jupytext package, so there is no runtime vulnerability anyway.