Bug 2550240

Summary: CVE-2026-108577 libmodplug: libmodplug: Denial of Service via excessive resource consumption in ABC music format parser [fedora-all]
Product: [Fedora] Fedora Reporter: Vladimir Vasilev <vvasilev>
Component: libmodplugAssignee: Antonio T. sagitter <sagitterghostproton.me>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: low    
Version: rawhideCC: kvolny, sagitterghostproton.me
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["617b6a23-1aff-4b96-8b01-e5327331ffb4"]}
Fixed In Version: libmodplug-0.8.9.0-31.fc46 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-10-20 10:52:14 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: 2549251    

Description Vladimir Vasilev 2026-10-13 07:34:49 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.

A vulnerability was determined in Konstanty Bialkowski libmodplug up to 0.8.9.1. This issue affects the function abc_add_gchord of the file src/load_abc.cpp of the component ABC Music Format Parser. This manipulation causes resource consumption. The attack may be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Comment 1 Fedora Update System 2026-10-20 09:26:51 UTC 
FEDORA-2026-6c58236667 (libmodplug-0.8.9.0-31.fc46) has been submitted as an update to Fedora 46.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-6c58236667
Comment 2 Fedora Update System 2026-10-20 10:52:14 UTC 
FEDORA-2026-6c58236667 (libmodplug-0.8.9.0-31.fc46) has been pushed to the Fedora 46 stable repository.
If problem still persists, please make note of it in this bug report.