Bug 2448838

Summary:	CVE-2026-31963 htslib: HTSlib: Arbitrary code execution via crafted CRAM file [fedora-43]
Product:	[Fedora] Fedora	Reporter:	Praise Ogwuche <pogwuche>
Component:	htslib	Assignee:	Jun Aruga <jaruga>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	high
Version:	43	CC:	jaruga, jmarshall, ron
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	{"flaws": ["df867fca-9f2b-457e-9756-68a40b382c8e"]}
Fixed In Version:	htslib-1.23.1-1.fc43	Doc Type:	---
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2026-03-28 00:45:52 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:	2448755

Description Praise Ogwuche 2026-03-18 20:40:32 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 2026-03-19 16:16:27 UTC

FEDORA-2026-3b06345bf2 (bcftools-1.23.1-1.fc43, htslib-1.23.1-1.fc43, and 1 more) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-3b06345bf2

Comment 2 Fedora Update System 2026-03-20 02:08:14 UTC

FEDORA-2026-3b06345bf2 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-2026-3b06345bf2`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-3b06345bf2

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

Comment 3 Fedora Update System 2026-03-28 00:45:52 UTC

FEDORA-2026-3b06345bf2 (bcftools-1.23.1-1.fc43, htslib-1.23.1-1.fc43, and 1 more) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.