CVE-2026-91735

Received Received - Intake

Incorrect Authorization in Google Chrome WebUI Allows Code Execution

Publication date: 2026-09-15

Last updated on: 2026-09-16

Assigner: Chrome

Description

Incorrect authorization in WebUI in Google Chrome prior to 153.0.8010.47 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-15

Last Modified

2026-09-16

Generated

2026-10-06

AI Q&A

2026-09-16

EPSS Evaluated

2026-10-04

NVD

CVE-2026-91735

EUVD

EUVD-2026-79972

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	153.0.8010.47

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 153.0.8010.47. A remote attacker who already compromised the renderer process could potentially execute arbitrary code outside the sandbox by tricking a user into visiting a specially crafted HTML page.

Impact Analysis

If exploited, this vulnerability could allow an attacker to run malicious code on your system, bypassing security restrictions. This might lead to unauthorized access to sensitive data, installation of malware, or further compromise of your device.

Mitigation Strategies

Update Google Chrome to version 153.0.8010.47 or later to address the incorrect authorization issue in WebUI.

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