Bug 2514408 (CVE-2026-19557)

Summary: CVE-2026-19557 chromium-browser: Chromium: Sandbox escape via use-after-free in TabStrip
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
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 the TabStrip component of Chromium. A remote attacker, who has already compromised the renderer process, could exploit a use-after-free vulnerability by crafting a malicious HTML page. This could potentially allow the attacker to escape the browser's sandbox, leading to further system compromise.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2514500, 2514501    
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Description OSIDB Bzimport 2026-08-11 21:31:29 UTC 
Use after free in TabStrip in Google Chrome on Mac prior to 151.0.7922.137 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)