Bug 2556496 (CVE-2026-113078)

Summary: CVE-2026-113078 chromium-browser: Race condition in Compositing
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A race condition flaw was found in the Compositing component of the Chromium browser. Upstream bug(s): https://issues.chromium.org/issues/499520020
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Bug Depends On: 2558579, 2559543    
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Description OSIDB Bzimport 2026-10-20 21:25:09 UTC
Improper input validation in Compositing in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)