CVE-2026-121030

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Incorrect Authorization in Google Chrome DevTools

Publication date: 2026-11-03

Last updated on: 2026-11-03

Assigner: Chrome

Description

Incorrect authorization in DevTools in Google Chrome prior to 157.0.8103.38 allowed a remote attacker leveraging social engineering to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
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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-2026-121030

EUVD

EUVD-2026-116473

Affected Vendors & Products

Vendor	Product	Version / Range
Google	Chrome	157.0.8103.38

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-863	The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Attack-Flow Graph

Executive Summary

This vulnerability involves incorrect authorization in Google Chrome's DevTools. A remote attacker could trick a user into visiting a specially crafted HTML page, potentially allowing arbitrary code execution outside the browser's sandbox. The attacker would need to use social engineering to exploit this issue.

Detection Guidance

This vulnerability involves incorrect authorization in Google Chrome's DevTools. Detection primarily involves checking the installed Chrome version. Run 'google-chrome --version' or check 'chrome://settings/help' in the browser to compare against version 157.0.8103.38 or later.

Impact Analysis

If exploited, this vulnerability could allow an attacker to run malicious code on your computer, bypassing Chrome's security protections. This could lead to data theft, installation of malware, or unauthorized system access. Users are at risk if they visit a malicious website or open a crafted HTML file.

Mitigation Strategies

Update Google Chrome to version 157.0.8103.38 or later immediately. Disable DevTools if not needed and avoid visiting untrusted websites. Enable automatic updates to prevent future issues.

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