Bug 2556685 (CVE-2026-113238)

Summary: CVE-2026-113238 chromium-browser: chromium-browser: arbitrary code execution via a crafted HTML page
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 chromium-browser. A remote attacker can exploit a memory corruption vulnerability in the CustomTabs feature by convincing a user to visit a specially crafted web page. Successful exploitation could allow the attacker to execute arbitrary code within the isolated browser sandbox environment.
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Bug Depends On: 2558579, 2559543    
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Description OSIDB Bzimport 2026-10-20 22:21:30 UTC
Memory corruption in CustomTabs in Google Chrome on on Android prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)