Bug 2489782

Summary:	CVE-2026-44898 python-mistune: Mistune: Arbitrary code execution via HTML injection in table of contents rendering [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Ganesh <gnaik>
Component:	python-mistune	Assignee:	Miro Hrončok <mhroncok>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	epel-packagers-sig, mhroncok, neil, python-packagers-sig, romain.geissler
Target Milestone:	---	Keywords:	Reopened, Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["914cd92a-07b0-4b92-b71c-a49d117450f7"]}
Fixed In Version:	python-mistune-3.2.1-1.fc45 python-mistune-3.2.1-1.fc44 python-mistune-3.2.1-1.fc43	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-06-28 00:56:41 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:	2481726

Description Ganesh 2026-06-17 08:11:34 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 2026-06-18 20:36:56 UTC

FEDORA-2026-182b5d52c9 (python-mistune-3.2.1-1.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-182b5d52c9

Comment 2 Fedora Update System 2026-06-18 20:40:19 UTC

FEDORA-2026-182b5d52c9 (python-mistune-3.2.1-1.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 2026-06-19 08:20:17 UTC

FEDORA-2026-3b027683d8 (python-mistune-3.2.1-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-3b027683d8

Comment 4 Fedora Update System 2026-06-19 08:20:17 UTC

FEDORA-2026-c52d83db89 (python-mistune-3.2.1-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-c52d83db89

Comment 5 Fedora Update System 2026-06-20 01:15:04 UTC

FEDORA-2026-3b027683d8 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-2026-3b027683d8`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-3b027683d8

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

Comment 6 Fedora Update System 2026-06-20 01:39:07 UTC

FEDORA-2026-c52d83db89 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-c52d83db89`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-c52d83db89

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

Comment 7 Fedora Update System 2026-06-28 00:56:41 UTC

FEDORA-2026-3b027683d8 (python-mistune-3.2.1-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 8 Fedora Update System 2026-06-28 01:07:55 UTC

FEDORA-2026-c52d83db89 (python-mistune-3.2.1-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.