Bug 2571981 (CVE-2026-126903)

Summary: CVE-2026-126903 chromium-browser: chromium-browser: Web origin policy bypass via improper state validation in ANGLE
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 the ANGLE graphics component of chromium-browser. Due to improper state validation, a remote attacker could bypass the browser's web origin policy by convincing a user to visit a specially crafted HTML page. Successful exploitation could allow the attacker to access sensitive information across different web origins that would normally be protected.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2572141, 2572142    
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Description OSIDB Bzimport 2026-11-11 22:53:10 UTC
Improper state validation in ANGLE in Google Chrome on on Windows prior to 157.0.8103.78 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)