Bug 2531156 (CVE-2026-79515)

Summary: CVE-2026-79515 stb: stb: Denial of Service via crafted TTF file
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 the `stb` component. An out-of-bounds read vulnerability in the `stbtt_GetGlyphShape` function allows a remote attacker to cause a Denial of Service (DoS) by sending a specially crafted TrueType Font (TTF) file. This can lead to the affected application becoming unresponsive or crashing.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2531286, 2531287, 2531288    
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Description OSIDB Bzimport 2026-09-09 20:41:23 UTC
An out-of-bounds read in the stbtt_GetGlyphShape component of nothings stb commit 31c1ad3 allows attackers to cause a Denial of Service (DoS) via sending a crafted TTF file.