CVE-2026-87584

Analyzed Analyzed - Analysis Complete

Incorrect Authorization Bypass in Google Chrome WebUI

Publication date: 2026-09-09

Last updated on: 2026-09-11

Assigner: Chrome

Description

Incorrect authorization in WebUI in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass system access restrictions into a privileged page via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-09

Last Modified

2026-09-11

Generated

2026-09-29

AI Q&A

2026-09-09

EPSS Evaluated

2026-09-27

NVD

CVE-2026-87584

EUVD

EUVD-2026-74418

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 153.0.8010.36 (exc)

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 is an incorrect authorization issue in the WebUI of Google Chrome before version 153.0.8010.36. It allowed a remote attacker to bypass system access restrictions and access privileged pages by using a specially crafted HTML page.

Detection Guidance

This vulnerability involves incorrect authorization in Google Chrome's WebUI. Detection primarily requires checking the installed Chrome version. Use commands like 'google-chrome --version' or 'chrome://version' in the browser to verify if the version is below 153.0.8010.36. If so, the system is vulnerable.

Impact Analysis

An attacker could exploit this to gain unauthorized access to sensitive or privileged pages in Chrome, potentially leading to data theft, unauthorized actions, or further compromise of the user's system.

Compliance Impact

The vulnerability allows unauthorized access to privileged pages via crafted HTML, which could lead to unauthorized data exposure or manipulation. This may violate GDPR's data protection principles or HIPAA's access controls if sensitive data is involved.

Mitigation Strategies

Update Google Chrome to version 153.0.8010.36 or later to address the incorrect authorization issue in WebUI.

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