CVE-2026-79178

Received Received - Intake

Incorrect Authorization in Chrome Web Authentication

Publication date: 2026-08-25

Last updated on: 2026-08-25

Assigner: Chrome

Description

Incorrect authorization in Web Authentication (Passkeys & Security Keys) in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-25

Last Modified

2026-08-25

Generated

2026-08-26

AI Q&A

2026-08-26

EPSS Evaluated

N/A

NVD

CVE-2026-79178

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	152.0.7977.65

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 Web Authentication (Passkeys & Security Keys) in Google Chrome versions before 152.0.7977.65. A remote attacker could exploit a crafted HTML page to bypass web origin policy, potentially gaining unauthorized access to sensitive data or actions.

Impact Analysis

If you use Google Chrome versions prior to 152.0.7977.65, an attacker could trick you into visiting a malicious website that exploits this flaw. This might allow them to access your accounts, personal data, or perform actions on your behalf without proper authorization.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, violating GDPR's data protection principles or HIPAA's safeguards for protected health information. Organizations using affected Chrome versions may face compliance risks and potential penalties.

Mitigation Strategies

Update Google Chrome to version 152.0.7977.65 or later to address the incorrect authorization issue in Web Authentication.

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