Bug 2448825

Summary: CVE-2026-31964 htslib: HTSlib: Denial of Service via NULL pointer dereference in CRAM decoding [epel-8]
Product: [Fedora] Fedora EPEL Reporter: Praise Ogwuche <pogwuche>
Component: htslibAssignee: Rasmus Ory Nielsen <ron>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: epel8CC: jaruga, jmarshall, ron
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["382b3a1f-85b3-4465-9cd7-f832feb32822"]}
Fixed In Version: htslib-1.23.1-1.el8 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-03-28 01:04:00 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: 2448756    

Description Praise Ogwuche 2026-03-18 20:33:20 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 18:59:53 UTC
FEDORA-EPEL-2026-74a1834691 (bcftools-1.23.1-1.el8, htslib-1.23.1-1.el8, and 1 more) has been submitted as an update to Fedora EPEL 8.
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-74a1834691

Comment 2 Fedora Update System 2026-03-20 01:56:46 UTC
FEDORA-EPEL-2026-74a1834691 has been pushed to the Fedora EPEL 8 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-74a1834691

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 01:04:00 UTC
FEDORA-EPEL-2026-74a1834691 (bcftools-1.23.1-1.el8, htslib-1.23.1-1.el8, and 1 more) has been pushed to the Fedora EPEL 8 stable repository.
If problem still persists, please make note of it in this bug report.