CVE-2026-87622

Analyzed Analyzed - Analysis Complete

Missing Authorization in Google Chrome FedCM

Publication date: 2026-09-09

Last updated on: 2026-09-09

Assigner: Chrome

Description

Missing authorization in FedCM in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

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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-2026-87622

EUVD

EUVD-2026-74389

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 a missing authorization check in FedCM (Federated Credential Management) in Google Chrome versions before 153.0.8010.36. A remote attacker could exploit this by crafting a specially designed HTML page to bypass web origin policy, potentially gaining unauthorized access to user data or actions.

Detection Guidance

This vulnerability involves missing authorization in FedCM in Google Chrome. Detection requires checking Chrome version and monitoring for unauthorized access attempts. No specific commands are provided in the context.

Impact Analysis

If you use an affected version of Chrome, an attacker could trick you into visiting a malicious page and gain access to sensitive information or perform actions on your behalf without proper authorization. This could lead to data leaks or unauthorized account access.

Compliance Impact

This vulnerability could lead to unauthorized data access, which may violate GDPR's data protection principles or HIPAA's safeguards for protected health information. Organizations using affected Chrome versions may face compliance risks due to potential data breaches.

Mitigation Strategies

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

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