CVE-2026-87472

Analyzed Analyzed - Analysis Complete

Improper Input Validation in Google Chrome FedCM

Publication date: 2026-09-09

Last updated on: 2026-09-10

Assigner: Chrome

Description

Improper input validation in FedCM in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to spoof UI elements via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-09

Last Modified

2026-09-10

Generated

2026-09-29

AI Q&A

2026-09-10

EPSS Evaluated

2026-09-27

NVD

CVE-2026-87472

EUVD

EUVD-2026-74367

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-20	The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Attack-Flow Graph

Executive Summary

This vulnerability involves improper input validation in FedCM (Federated Credential Management) within Google Chrome versions before 153.0.8010.36. A remote attacker who has compromised the renderer process could exploit this to spoof UI elements by using a crafted HTML page.

Detection Guidance

Detection of this vulnerability requires checking the version of Google Chrome installed on your system. If the version is prior to 153.0.8010.36, the system is vulnerable. Use the command 'google-chrome --version' or 'chrome --version' to check the installed version.

Impact Analysis

This vulnerability could allow an attacker to trick users into interacting with fake UI elements, potentially leading to unauthorized actions or information disclosure. Users might be deceived into providing sensitive data or granting permissions they did not intend.

Compliance Impact

This vulnerability involves improper input validation in FedCM in Google Chrome, enabling UI spoofing via crafted HTML pages. While it does not directly impact data confidentiality or integrity, it could potentially be exploited to deceive users into disclosing sensitive information, which may indirectly affect compliance with standards like GDPR or HIPAA by undermining user trust and consent mechanisms.

Mitigation Strategies

Update Google Chrome to version 153.0.8010.36 or later to address the improper input validation in FedCM.

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