Bug 2523871 (CVE-2026-78942)

Summary: CVE-2026-78942 chromium-browser: Google Chrome: Web origin policy bypass via incorrect reference resolution in Loader
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 the Loader component of Google Chrome. This vulnerability, caused by incorrect reference resolution, allows a remote attacker to bypass the web origin policy by sending specially crafted network traffic. Bypassing the web origin policy can lead 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: 2524890, 2524891    
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Description OSIDB Bzimport 2026-08-25 20:46:15 UTC
Incorrect reference resolution in Loader in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to bypass web origin policy via crafted network traffic. (Chromium security severity: Medium)