CVE-2026-87446

Analyzed Analyzed - Analysis Complete

Incomplete Cleanup in Chrome Extensions Allows Access Bypass

Publication date: 2026-09-09

Last updated on: 2026-09-10

Assigner: Chrome

Description

Incomplete cleanup in Extensions in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass system access restrictions 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-2026-87446

EUVD

EUVD-2026-74531

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-459	The product does not properly "clean up" and remove temporary or supporting resources after they have been used.

Attack-Flow Graph

Executive Summary

This vulnerability involves incomplete cleanup in Google Chrome's Extensions feature. A remote attacker could exploit it through social engineering to bypass system access restrictions by using a specially crafted Chrome extension.

Detection Guidance

This vulnerability involves incomplete cleanup in Google Chrome extensions allowing bypass of system access restrictions. Detection requires checking installed Chrome extensions for unauthorized or suspicious ones. Review extensions in chrome://extensions and look for unfamiliar or recently added extensions. No specific commands are provided in the CVE details.

Impact Analysis

An attacker could trick you into installing a malicious extension, allowing them to bypass security restrictions on your system. This could lead to unauthorized access or control of your device.

Compliance Impact

The vulnerability involves incomplete cleanup in Google Chrome extensions, allowing bypass of system access restrictions through social engineering. This could potentially lead to unauthorized data access or manipulation, which may impact compliance with standards like GDPR (data protection) or HIPAA (healthcare data privacy) if sensitive information is exposed.

Mitigation Strategies

Update Google Chrome to version 153.0.8010.36 or later to address the incomplete cleanup issue in Extensions.

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