CVE-2026-87544
Modified Modified - Updated After Analysis

Incorrect Authorization Bypass in Google Chrome Extensions

Publication date: 2026-09-09

Last updated on: 2026-09-18

Assigner: Chrome

Description
Incorrect authorization in Extensions 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: Low)

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Meta Information

Published
2026-09-09
Last Modified
2026-09-18
Generated
2026-09-30
AI Q&A
2026-09-10
EPSS Evaluated
2026-09-27
NVD
CVE-2026-87544
EUVD
EUVD-2026-74478

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
google chrome to 153.0.8010.36 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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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.

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Executive Summary

This vulnerability involves incorrect authorization in Google Chrome's Extensions feature. It allows a remote attacker to bypass system access restrictions and access privileged pages by using a specially crafted HTML page. The issue was present in Chrome versions before 153.0.8010.36.

Detection Guidance

Detection requires checking the Chrome version. Run 'google-chrome --version' or check 'chrome://settings/help' in the browser. If the version is below 153.0.8010.36, the system is vulnerable.

Impact Analysis

An attacker could exploit this to gain unauthorized access to sensitive pages or data within Chrome, potentially leading to data theft, unauthorized actions, or further compromise of the user's system. However, the severity is rated as Low by Chromium.

Compliance Impact

This vulnerability allows unauthorized access to privileged pages via crafted HTML, which could lead to data exposure or manipulation. Such access may violate GDPR's data protection principles or HIPAA's safeguards for protected health information if exploited.

Mitigation Strategies

Update Google Chrome to version 153.0.8010.36 or later immediately. Disable automatic extension updates if possible until the update is confirmed.

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