Bug 2570945 (CVE-2026-126050)

Summary: CVE-2026-126050 apitrace: apitrace: Arbitrary code execution via crafted trace file
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in apitrace. This vulnerability occurs when the application processes a specially crafted trace file containing an oversized compressed data chunk, triggering a heap-based buffer overflow. An attacker could exploit this issue by convincing a user to open, inspect, or replay the malicious file, potentially leading to arbitrary code execution or a Denial of Service (DoS) through application crashes.
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Description OSIDB Bzimport 2026-11-10 20:32:24 UTC
apitrace 2.0 through 14.0 contains a heap-based buffer overflow in SnappyFile::flushReadCache() that allows attackers to write past m_compressedCache via an oversized compressed chunk length. Attackers can supply a crafted .trace file whose 4-byte chunk length exceeds the fixed buffer size, corrupting heap memory when users dump, inspect, or replay it.