CVE-2026-87432

Analyzed Analyzed - Analysis Complete

Incorrect Authorization in Google Chrome UI Spoofing

Publication date: 2026-09-09

Last updated on: 2026-09-09

Assigner: Chrome

Description

Incorrect authorization in Navigation 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

2026-09-09

Generated

2026-09-29

AI Q&A

2026-09-10

EPSS Evaluated

2026-09-27

NVD

CVE-2026-87432

EUVD

EUVD-2026-74349

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 153.0.8010.36 (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 the Navigation component of Google Chrome before version 153.0.8010.36. A remote attacker who already compromised the renderer process could exploit this to spoof UI elements by tricking users into interacting with 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' on Linux or check 'chrome://settings/help' in the browser to verify the version.

Impact Analysis

If exploited, this flaw could allow an attacker to deceive users by displaying fake UI elements, potentially leading to phishing attacks or unauthorized actions being performed under false pretenses.

Compliance Impact

This vulnerability involves incorrect authorization in Google Chrome's Navigation component, allowing a remote attacker to spoof UI elements via a crafted HTML page. This could potentially lead to phishing attacks or unauthorized data access, which may impact compliance with GDPR (data protection) and HIPAA (healthcare data privacy) by enabling unauthorized access or misleading users into disclosing sensitive information.

Mitigation Strategies

Immediately update Google Chrome to version 153.0.8010.36 or later. Disable automatic updates temporarily if needed, but ensure the update is applied as soon as possible to prevent exploitation.

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