CVE-2026-121085

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Incorrect Authorization Bypass in Google Chrome WebUI

Publication date: 2026-11-03

Last updated on: 2026-11-03

Assigner: Chrome

Description

Incorrect authorization in WebUI in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to bypass system access restrictions into a privileged page via a crafted HTML page. (Chromium security severity: Low)

CVSS Scores

EPSS Scores

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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-2026-121085

EUVD

EUVD-2026-116344

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 the WebUI of Google Chrome before version 157.0.8103.38. A remote attacker could exploit a crafted HTML page to bypass system access restrictions and access privileged pages they should not be able to reach.

Impact Analysis

If exploited, this vulnerability could allow an attacker to access sensitive or privileged pages in Chrome without proper authorization. This might lead to unauthorized actions, data exposure, or further compromise of the user's system.

Mitigation Strategies

Update Google Chrome to version 157.0.8103.38 or later to address the incorrect authorization issue in WebUI.

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