Bug 2543582 (CVE-2026-102317)

Summary: CVE-2026-102317 chromium-browser: chromium-browser: Arbitrary code execution outside the sandbox via improper privilege management in Mojo
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 chromium-browser. An improper privilege management issue exists within the Mojo inter-process communication (IPC) framework. A local attacker could exploit this flaw by running a crafted local program to bypass the browser's sandbox security boundary. Successful exploitation could allow the attacker to execute arbitrary code on the host operating system.
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Bug Depends On: 2544457, 2544459    
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Description OSIDB Bzimport 2026-09-29 20:17:14 UTC
Improper privilege management in Mojo in Google Chrome on on Windows prior to 154.0.8037.92 allowed a local attacker to potentially execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)