CVE-2026-121055 is a vulnerability in Google Chrome
Published on November 3, 2026
Incomplete cleanup in DevTools in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to bypass system access restrictions via a crafted Chrome extension. (Chromium security severity: Low)
Weakness Type
What is an Insufficient Cleanup Vulnerability?
The software does not properly "clean up" and remove temporary or supporting resources after they have been used.
CVE-2026-121055 has been classified to as an Insufficient Cleanup vulnerability or weakness.
Products Associated with CVE-2026-121055
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Affected Versions
Google Chrome:- Version 157.0.8103.38 and below 157.0.8103.38 is affected.