Bug 2530378 (CVE-2026-87433)

Summary: CVE-2026-87433 chromium-browser: Google Chrome: Race condition allows site isolation bypass
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 Google Chrome. A race condition in the FileAPI component allows a remote attacker, who has already compromised the renderer process, to bypass site isolation. This bypass can be achieved by providing a specially crafted HTML page.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2542199, 2542200    
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Description OSIDB Bzimport 2026-09-09 01:10:11 UTC 
Race condition in FileAPI in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)