Insufficient Policy Enforcement in Google Chrome WebUI

Publication date: 2026-05-06

Last updated on: 2026-05-08

Assigner: Chrome

Description

Insufficient policy enforcement in WebUI in Google Chrome on Linux, Mac, Windows, ChromeOS prior to 148.0.7778.96 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-05-06

Last Modified

2026-05-08

Generated

2026-07-06

AI Q&A

2026-05-06

EPSS Evaluated

2026-07-05

NVD

CVE-2026-7946

EUVD

EUVD-2026-27995

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 148.0.7778.96 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-693	The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

Attack-Flow Graph

Executive Summary

This vulnerability involves insufficient policy enforcement in the WebUI component of Google Chrome on multiple operating systems including Linux, Mac, Windows, and ChromeOS. It allows a remote attacker who has already compromised the renderer process to bypass site isolation by using a specially crafted HTML page.

Impact Analysis

The vulnerability can allow an attacker who has compromised the renderer process to bypass site isolation protections. This could lead to unauthorized access to data from other sites or processes that are normally isolated, potentially exposing sensitive information or enabling further attacks.

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