Bug 2486337

Summary: CVE-2026-48103 7zip: off-by-one heap-based buffer over-read in the WIM archive handler [fedora-all]
Product: [Fedora] Fedora Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: 7zipAssignee: Michel Lind <michel>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: davide, michel
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["55aec053-d03a-4dad-a906-db5036087bc1"]}
Fixed In Version: 7zip-26.01-1.fc44 7zip-26.01-1.fc43 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-06-16 01:03:12 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: 2485508    

Description Guilherme de Almeida Suckevicz 2026-06-08 13:31:20 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 2026-06-15 18:26:15 UTC
FEDORA-2026-4be7569210 (7zip-26.01-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-4be7569210

Comment 2 Fedora Update System 2026-06-15 18:26:40 UTC
FEDORA-2026-f36864b408 (7zip-26.01-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-f36864b408

Comment 3 Fedora Update System 2026-06-16 01:03:12 UTC
FEDORA-2026-4be7569210 (7zip-26.01-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 4 Fedora Update System 2026-06-16 01:11:29 UTC
FEDORA-2026-f36864b408 (7zip-26.01-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.