CVE-2026-87450

Modified Modified - Updated After Analysis

Incorrect Authorization in Google Chrome via Malicious Extension

Publication date: 2026-09-09

Last updated on: 2026-09-10

Assigner: Chrome

Description

Incorrect authorization in Permissions in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to obtain sensitive information via a crafted Chrome extension. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-09

Last Modified

2026-09-10

Generated

2026-09-29

AI Q&A

2026-09-10

EPSS Evaluated

2026-09-27

NVD

CVE-2026-87450

EUVD

EUVD-2026-74387

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 involves incorrect authorization in the Permissions system of Google Chrome before version 153.0.8010.36. A remote attacker could exploit this by tricking a user into installing a malicious Chrome extension through social engineering. The flaw allowed the attacker to gain access to sensitive information.

Detection Guidance

This vulnerability involves incorrect authorization in Google Chrome's Permissions prior to version 153.0.8010.36. To detect it, check your Chrome version by running chrome --version or chrome://version in the browser. If your version is below 153.0.8010.36, the system is vulnerable.

Impact Analysis

If you use an affected version of Google Chrome, you could be tricked into installing a malicious extension. This could lead to unauthorized access to your sensitive data, such as personal information or browsing activity.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, which may violate GDPR or HIPAA if personal or health data is compromised. Organizations using affected Chrome versions may face compliance risks due to potential data breaches.

Mitigation Strategies

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

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