Bug 2489782 - CVE-2026-44898 python-mistune: Mistune: Arbitrary code execution via HTML injection in table of contents rendering [fedora-all]
Summary: CVE-2026-44898 python-mistune: Mistune: Arbitrary code execution via HTML inj...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: python-mistune
Version: rawhide
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
Assignee: Miro Hrončok
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["914cd92a-07b0-4b92-b71c-a...
Depends On:
Blocks: CVE-2026-44898
TreeView+ depends on / blocked
 
Reported: 2026-06-17 08:11 UTC by Ganesh
Modified: 2026-06-28 01:07 UTC (History)
5 users (show)

Fixed In Version: python-mistune-3.2.1-1.fc45 python-mistune-3.2.1-1.fc44 python-mistune-3.2.1-1.fc43
Clone Of:
Environment:
Last Closed: 2026-06-28 00:56:41 UTC
Type: ---
Embargoed:

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System ID Private Priority Status Summary Last Updated
Fedora Package Sources python-mistune pull-request 20 0 None None None 2026-06-18 11:45:58 UTC

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.
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