Inappropriate Implementation in Google Chrome FileSystem

Publication date: 2026-06-04

Last updated on: 2026-06-08

Assigner: Chrome

Description

Inappropriate implementation in FileSystem in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to bypass same origin policy via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-06-04

Last Modified

2026-06-08

Generated

2026-07-15

AI Q&A

2026-06-05

EPSS Evaluated

2026-07-14

NVD

CVE-2026-11078

EUVD

EUVD-2026-34526

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 149.0.7827.53 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
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 is an inappropriate implementation in the FileSystem component of Google Chrome versions prior to 149.0.7827.53. It allows a remote attacker, who has already compromised the renderer process, to bypass the same origin policy by using a specially crafted HTML page.

Impact Analysis

If exploited, this vulnerability could allow an attacker to bypass the same origin policy, potentially enabling them to access or manipulate data from different origins within the browser. This could lead to unauthorized data access or actions within the browser context.

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