CVE-2026-87537

Analyzed Analyzed - Analysis Complete

Missing Authorization in Google Chrome Extensions

Publication date: 2026-09-09

Last updated on: 2026-09-10

Assigner: Chrome

Description

Missing authorization in Extensions in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via crafted network traffic. (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-2026-87537

EUVD

EUVD-2026-74323

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-862	The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

Executive Summary

This vulnerability involves missing authorization checks in Google Chrome's Extensions feature. A remote attacker who has already compromised the renderer process could exploit this to execute arbitrary code outside the sandbox by sending specially crafted network traffic.

Detection Guidance

This vulnerability involves missing authorization in Google Chrome's Extensions component. Detection requires checking Chrome version and monitoring for suspicious renderer process activity. Verify Chrome version is 153.0.8010.36 or later. Check for unauthorized extensions or unusual network traffic patterns from Chrome processes.

Impact Analysis

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

Compliance Impact

This vulnerability could lead to unauthorized data access or exfiltration, violating GDPR's data protection requirements or HIPAA's safeguards for protected health information. Organizations may face compliance penalties if such breaches occur due to unpatched systems.

Mitigation Strategies

Update Google Chrome to version 153.0.8010.36 or later to address the missing authorization issue in Extensions.

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