CVE-2026-5901

Received Received - Intake

Policy Bypass in Chrome DevTools via Malicious Extension

Publication date: 2026-04-08

Last updated on: 2026-04-13

Assigner: Chrome

Description

Insufficient policy enforcement in DevTools in Google Chrome prior to 147.0.7727.55 allowed an attacker who convinced a user to install a malicious extension to bypass enterprise host restrictions for cookie modification via a crafted Chrome Extension. (Chromium security severity: Low)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-04-08

Last Modified

2026-04-13

Generated

2026-07-06

AI Q&A

2026-04-09

EPSS Evaluated

2026-07-05

NVD

CVE-2026-5901

EUVD

EUVD-2026-20725

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 147.0.7727.55 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-602	The product is composed of a server that relies on the client to implement a mechanism that is intended to protect the server.

Attack-Flow Graph

Executive Summary

This vulnerability is an insufficient policy enforcement issue in the DevTools component of Google Chrome versions prior to 147.0.7727.55. It allows an attacker who convinces a user to install a malicious Chrome extension to bypass enterprise host restrictions related to cookie modification by using a specially crafted extension.

Impact Analysis

If exploited, this vulnerability could allow an attacker to bypass enterprise restrictions on cookie modification, potentially leading to unauthorized changes to cookies. This could affect user privacy and security by enabling malicious extensions to manipulate cookies despite policy controls.

Mitigation Strategies

To mitigate this vulnerability, update Google Chrome to version 147.0.7727.55 or later, as the issue is fixed in that version.

Additionally, be cautious about installing Chrome extensions from untrusted sources to prevent malicious extensions from bypassing enterprise host restrictions.

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