CVE-2026-12460
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Insufficient Policy Enforcement in File System Access in Google Chrome

Publication date: 2026-06-17

Last updated on: 2026-06-17

Assigner: Chrome

Description
Insufficient policy enforcement in File System Access in Google Chrome prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted PDF file. (Chromium security severity: High)
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Meta Information
Published
2026-06-17
Last Modified
2026-06-17
Generated
2026-06-17
AI Q&A
2026-06-17
EPSS Evaluated
N/A
NVD
CVE-2026-12460
EUVD
EUVD-2026-37545
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
google chrome 149.0.7827.155
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
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Executive Summary

This vulnerability involves insufficient policy enforcement in the File System Access feature of Google Chrome versions prior to 149.0.7827.155. It allows a remote attacker who has compromised the renderer process to bypass site isolation by using a specially crafted PDF file.

Impact Analysis

An attacker exploiting this vulnerability could bypass site isolation, potentially allowing them to access or manipulate data from other sites or processes that should be isolated. This could lead to unauthorized access to sensitive information or compromise of browser security.

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