Bug 2553746 (CVE-2026-111162)

Summary: CVE-2026-111162 wildmidi: wildmidi: Denial of Service via heap out-of-bounds read in HMP parser
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in WildMIDI. When parsing HMP audio files, an integer underflow in chunk length calculations causes the application to read beyond allocated memory boundaries. By tricking a user into opening a specially crafted file, an attacker can trigger an application crash, resulting in a Denial of Service (DoS), or potentially expose sensitive memory data.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2554385, 2554386    
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Description OSIDB Bzimport 2026-10-15 19:30:57 UTC 
WildMIDI through 0.5.0 contains a heap out-of-bounds read vulnerability in the HMP parser _WM_ParseNewHmp() that allows attackers to read beyond buffers via underflowed chunk lengths. Attackers can supply a crafted .hmp file with a chunk length of 0-12 that wraps to roughly 4 GB, crashing applications or exposing heap bytes through WildMidi_GetInfo().