Bug 2523903 (CVE-2026-79191)

Summary: CVE-2026-79191 chromium-browser: Google Chrome: Site isolation bypass via crafted HTML page
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 Google Chrome. This incorrect authorization vulnerability in the SiteIsolation feature allows a remote attacker, who has already compromised the renderer process and used social engineering, to bypass site isolation. This bypass is achieved by tricking a user into interacting with a specially crafted HTML page, potentially leading to unauthorized access to sensitive information or further system compromise.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2540924, 2540926    
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Description OSIDB Bzimport 2026-08-25 20:48:26 UTC 
Incorrect authorization in SiteIsolation in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)