Bug 2566315 (CVE-2026-121090)

Summary: CVE-2026-121090 chromium-browser: Improper privilege management in Navigation
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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An improper privilege management flaw was found in the Navigation component of the Chromium browser. Upstream bug(s): https://issues.chromium.org/issues/568936993
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Bug Depends On: 2567123, 2567143    
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Description OSIDB Bzimport 2026-11-03 20:52:46 UTC
Improper privilege management in Navigation in Google Chrome on on iOS prior to 157.0.8103.38 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)