Bug 2530461 (CVE-2026-87622)

Summary: CVE-2026-87622 chromium-browser: Chromium-browser: Web origin policy bypass via missing FedCM authorization
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 chromium-browser. Missing authorization in the Federated Credential Management (FedCM) API allowed a remote attacker to bypass the web origin policy. This bypass could be achieved by enticing a user to visit a crafted HTML page, potentially leading to unauthorized access to sensitive information or actions across different web origins.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2542201, 2542202, 2542206    
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Description OSIDB Bzimport 2026-09-09 01:15:45 UTC
Missing authorization in FedCM in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)