Bug 2571977 (CVE-2026-126851)

Summary: CVE-2026-126851 chromium-browser: chromium-browser: arbitrary code execution via use-after-free in Accessibility
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 the Accessibility component of Chromium. A remote attacker could exploit this vulnerability by enticing a user to visit a specially crafted HTML page, triggering a use-after-free memory error. Successful exploitation may allow an attacker to execute arbitrary code inside the browser's sandbox environment.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2572137, 2572138    
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Description OSIDB Bzimport 2026-11-11 22:52:56 UTC
Use after free in Accessibility in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)