CVE-2026-87473

Analyzed Analyzed - Analysis Complete

Incorrect Authorization in File Handling in Google Chrome

Publication date: 2026-09-09

Last updated on: 2026-09-15

Assigner: Chrome

Description

Incorrect authorization in FileHandling in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Low)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-09

Last Modified

2026-09-15

Generated

2026-09-29

AI Q&A

2026-09-09

EPSS Evaluated

2026-09-27

NVD

CVE-2026-87473

EUVD

EUVD-2026-74465

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 FileHandling in Google Chrome before version 153.0.8010.36. A remote attacker could exploit this by using social engineering to trick a user into visiting a crafted HTML page, which would bypass system access restrictions.

Detection Guidance

This vulnerability involves incorrect authorization in FileHandling in Google Chrome prior to version 153.0.8010.36. To detect it, check your Chrome version by running chrome --version or chrome://version in the browser. If the version is below 153.0.8010.36, the system is vulnerable.

Impact Analysis

If exploited, this vulnerability could allow an attacker to bypass security restrictions on your system. This might enable unauthorized access to files or other sensitive data, depending on the user's permissions.

Compliance Impact

The vulnerability involves incorrect authorization in FileHandling in Google Chrome, allowing bypass of system access restrictions via crafted HTML. This could potentially lead to unauthorized access to sensitive data, which may impact compliance with GDPR (data protection) and HIPAA (healthcare data privacy) if exploited. However, the specific impact on compliance depends on the context of use and existing security measures.

Mitigation Strategies

Update Google Chrome to version 153.0.8010.36 or later to address the incorrect authorization issue in FileHandling.

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