CVE-2026-87515

Analyzed Analyzed - Analysis Complete

Incorrect Authorization in Google Chrome FileAPI

Publication date: 2026-09-09

Last updated on: 2026-09-10

Assigner: Chrome

Description

Incorrect authorization in FileAPI 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: 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

2026-09-09

EPSS Evaluated

2026-09-27

NVD

CVE-2026-87515

EUVD

EUVD-2026-74314

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 FileAPI within Google Chrome before version 153.0.8010.36. A remote attacker could exploit this by tricking a user into visiting a crafted HTML page, potentially bypassing system access restrictions.

Detection Guidance

This vulnerability involves incorrect authorization in Google Chrome's FileAPI, allowing bypass of system access restrictions via crafted HTML. Detection requires checking Chrome version and monitoring for suspicious HTML page interactions. No specific commands are provided in the context.

Impact Analysis

If exploited, this vulnerability could allow an attacker to bypass security restrictions on your system, potentially accessing restricted files or functionalities without proper authorization.

Compliance Impact

The vulnerability involves incorrect authorization in FileAPI allowing bypass of system access restrictions via crafted HTML. This could potentially lead to unauthorized data access or exfiltration, which may impact compliance with GDPR (data protection) or HIPAA (health data privacy) if sensitive user data is involved. However, the provided CVE details do not specify data exposure or regulatory impact.

Mitigation Strategies

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

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