Insufficient Policy Enforcement in Google Chrome DevTools

Publication date: 2026-06-11

Last updated on: 2026-06-23

Assigner: Chrome

Description

Insufficient policy enforcement in DevTools in Google Chrome prior to 149.0.7827.115 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: High)

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-06-11

Last Modified

2026-06-23

Generated

2026-07-02

AI Q&A

2026-06-12

EPSS Evaluated

2026-07-01

NVD

CVE-2026-12024

EUVD

EUVD-2026-36344

Affected Vendors & Products

Vendor	Product	Version / Range
google	chrome	to 149.0.7827.115 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-346	The product does not properly verify that the source of data or communication is valid.

Attack-Flow Graph

Executive Summary

This vulnerability is an insufficient policy enforcement issue in the DevTools component of Google Chrome versions prior to 149.0.7827.115. It allows a remote attacker to bypass the same origin policy by using a specially crafted HTML page.

Impact Analysis

By bypassing the same origin policy, a remote attacker could potentially access or manipulate data from other origins that should be restricted, leading to unauthorized data exposure or actions within the browser.

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