CVE-2026-121055
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Incomplete Cleanup in DevTools in Google Chrome

Publication date: 2026-11-03

Last updated on: 2026-11-03

Assigner: Chrome

Description
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)

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Meta Information

Published
2026-11-03
Last Modified
2026-11-03
Generated
2026-11-04
AI Q&A
2026-11-04
EPSS Evaluated
N/A
NVD
CVE-2026-121055
EUVD
EUVD-2026-116333

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Google Chrome 157.0.8103.38

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-459 The product does not properly "clean up" and remove temporary or supporting resources after they have been used.

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Executive Summary

This vulnerability is an incomplete cleanup issue in Google Chrome's DevTools. It allows a remote attacker to bypass system access restrictions by using a specially crafted Chrome extension. The issue exists in Chrome versions prior to 157.0.8103.38.

Impact Analysis

An attacker could exploit this to bypass security restrictions on your system through a malicious Chrome extension. This might allow unauthorized access to sensitive data or system functions, depending on the extension's permissions.

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