Bug 2523968 (CVE-2026-78999)

Summary: CVE-2026-78999 chromium-browser: Google Chrome: Arbitrary code execution due to improper privilege management
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's Navigation component. Improper privilege management could allow a remote attacker, who has already compromised the renderer process and leveraged social engineering, to execute arbitrary code outside of the sandbox. This exploitation occurs via a specially crafted HTML page, leading to a severe security bypass.
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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 20:52:44 UTC 
Improper privilege management in Navigation in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)