CVE-2026-17976

Analyzed Analyzed - Analysis Complete

Insufficient Policy Enforcement in Extensions in Google Chrome

Publication date: 2026-07-30

Last updated on: 2026-08-03

Assigner: Chrome

Description

Insufficient policy enforcement in Extensions in Google Chrome prior to 151.0.7922.72 allowed an attacker who convinced a user to install a malicious extension to bypass discretionary access control via a crafted domain name. (Chromium security severity: Low)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-30

Last Modified

2026-08-03

Generated

2026-08-19

AI Q&A

2026-07-30

EPSS Evaluated

2026-08-18

NVD

CVE-2026-17976

EUVD

EUVD-2026-50902

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 151.0.7922.72 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This vulnerability is due to insufficient policy enforcement in Google Chrome's Extensions feature. An attacker could trick a user into installing a malicious extension, which could then bypass access controls by exploiting a crafted domain name.

Detection Guidance

This vulnerability involves insufficient policy enforcement in Chrome Extensions. Detection requires checking installed extensions for suspicious or unrecognized ones. Review Chrome's extension list via chrome://extensions and look for unknown or recently added extensions. No specific commands are provided in the CVE details.

Impact Analysis

If exploited, this vulnerability could allow an attacker to bypass security restrictions on your system through a malicious extension, potentially leading to unauthorized access or data theft.

Compliance Impact

This vulnerability allows an attacker to bypass discretionary access control via a crafted domain name, which could lead to unauthorized data access or modification. This may violate compliance requirements under GDPR (data protection) and HIPAA (healthcare data privacy) by enabling unauthorized access to sensitive information.

Mitigation Strategies

Update Google Chrome to version 151.0.7922.72 or later to address the insufficient policy enforcement in Extensions.

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