Bug 2543562 (CVE-2026-102309)

Summary: CVE-2026-102309 chromium-browser: chromium-browser: Use after free in FullScreen
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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An use after free flaw was found in the FullScreen component of the Chromium browser. Upstream bug(s): https://code.google.com/p/chromium/issues/detail?id=560867085 https://code.google.com/p/chromium/issues/detail?id=102309
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Bug Depends On: 2544457, 2544459    
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Description OSIDB Bzimport 2026-09-29 20:07:24 UTC
Use after free in FullScreen in Google Chrome prior to 154.0.8037.92 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)