CVE-2026-87658

Analyzed Analyzed - Analysis Complete

Information Leak in Google Chrome Extensions

Publication date: 2026-09-09

Last updated on: 2026-09-09

Assigner: Chrome

Description

Information leak in Extensions in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to obtain cross-origin data 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

2026-09-09

Generated

2026-09-29

AI Q&A

2026-09-10

EPSS Evaluated

2026-09-27

NVD

CVE-2026-87658

EUVD

EUVD-2026-74312

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-200	The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Attack-Flow Graph

Executive Summary

This vulnerability is an information leak in Google Chrome's Extensions feature. It allows a remote attacker to obtain cross-origin data through a crafted Chrome extension, even if the user is tricked into installing it via social engineering. The severity is rated as Medium by Chromium.

Detection Guidance

This vulnerability involves an information leak in Google Chrome extensions. Detection requires checking installed extensions for suspicious or untrusted ones. Review extensions in Chrome via chrome://extensions and look for unknown or recently added extensions. No specific commands are provided in the CVE details.

Impact Analysis

This vulnerability could allow an attacker to access sensitive data from different websites than the one you are currently visiting. If you install a malicious extension, it may steal information like login credentials, personal data, or browsing history without your knowledge.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, potentially violating GDPR (if personal data is leaked) or HIPAA (if protected health information is compromised). Organizations must ensure proper security controls to prevent such leaks and maintain compliance.

Mitigation Strategies

Update Google Chrome to version 153.0.8010.36 or later to address the vulnerability. Remove any untrusted or unnecessary Chrome extensions from your system.

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