CVE-2026-79174

Analyzed Analyzed - Analysis Complete

Incorrect Authorization Bypass in Google Chrome Extensions

Publication date: 2026-08-25

Last updated on: 2026-08-28

Assigner: Chrome

Description

Incorrect authorization in Extensions in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to bypass web origin policy into a privileged page via a crafted HTML page. (Chromium security severity: High)

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-08-25

Last Modified

2026-08-28

Generated

2026-09-15

AI Q&A

2026-08-26

EPSS Evaluated

2026-09-13

NVD

CVE-2026-79174

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 152.0.7977.65 (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 Google Chrome's Extensions feature. A remote attacker who already compromised the renderer process could bypass web origin policy and access privileged pages through a specially crafted HTML page. This flaw exists in Chrome versions before 152.0.7977.65.

Detection Guidance

This vulnerability is specific to Google Chrome versions prior to 152.0.7977.65. To detect it, check your Chrome version by running chrome://version/ in the browser address bar. If your version is below 152.0.7977.65, the system is vulnerable. Update Chrome immediately to the latest version to mitigate the risk.

Impact Analysis

If you use Chrome versions prior to 152.0.7977.65, an attacker could potentially access sensitive pages or data by exploiting this flaw. This requires the attacker to first compromise the renderer process, which is a significant hurdle but could lead to unauthorized access to privileged content.

Compliance Impact

This vulnerability could potentially impact compliance with GDPR and HIPAA by allowing unauthorized access to privileged pages through a compromised renderer process. Such unauthorized access may lead to data breaches or exposure of sensitive information, which are key concerns under these regulations.

Mitigation Strategies

Update Google Chrome to version 152.0.7977.65 or later to address the vulnerability.

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