Bug 2523804 (CVE-2026-79238)

Summary: CVE-2026-79238 chromium-browser: Google Chrome ServiceWorker: Web Origin Policy Bypass via Crafted Extension
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 ServiceWorker in Google Chrome. This incorrect authorization vulnerability allows a remote attacker, by leveraging social engineering tactics and a specially crafted Chrome extension, to bypass the web origin policy. Bypassing the web origin policy could lead to unauthorized access to sensitive information or actions within the browser.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2524907, 2524909    
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Description OSIDB Bzimport 2026-08-25 20:36:16 UTC
Incorrect authorization in ServiceWorker in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted Chrome extension. (Chromium security severity: Medium)