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)
Published: 2026-06-11
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

This vulnerability arises from insufficient policy enforcement within the DevTools component of Google Chrome. It is classified as CWE-346 and results in a same-origin policy bypass. The flaw essentially allows a maliciously crafted web page to cause Chrome's development tools to ignore the same-origin restriction, potentially permitting the page to access cross-origin resources that would otherwise be blocked.

Affected Systems

Google Chrome stable channel users running any version earlier than 149.0.7827.115 are affected. The vulnerability exists in all installations that have not received the most recent update.

Risk and Exploitability

The CVSS score of 6.5 indicates a medium severity risk, while the EPSS score of less than 1% points to a low likelihood of exploitation at this time. The vulnerability is not listed in the CISA KEV catalog, implying no widespread exploitation has been reported. An attacker can activate the flaw by delivering a specially crafted HTML page to a victim’s browser, exploiting the DevTools component without requiring elevated user privileges.

Generated by OpenCVE AI on June 12, 2026 at 18:52 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update Chrome to version 149.0.7827.115 or later to apply the vendor’s patch
  • If immediate updating is not possible, restrict or disable DevTools access for end-users through enterprise Chrome policies
  • Deploy content filtering or web-protection solutions to block malicious HTML content that targets this DevTools vulnerability

Generated by OpenCVE AI on June 12, 2026 at 18:52 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
Debian DSA Debian DSA DSA-6344-1 chromium security update
History

Mon, 22 Jun 2026 12:15:00 +0000

Type Values Removed Values Added
Title DevTools Same-Origin Policy Bypass in Google Chrome chromium-browser: chromium-browser: Insufficient policy enforcement  DevTools
References
Metrics threat_severity

None

 threat_severity

Moderate

Sat, 13 Jun 2026 00:30:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Linux
Linux linux Kernel
Microsoft
Microsoft windows
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos
Linux
Linux linux Kernel
Microsoft
Microsoft windows

Fri, 12 Jun 2026 19:15:00 +0000

Type Values Removed Values Added
Title DevTools Same-Origin Policy Bypass in Google Chrome

Fri, 12 Jun 2026 17:30:00 +0000

Type Values Removed Values Added
Title Remote Same‑Origin Policy Bypass via CSRF in Chrome DevTools
Weaknesses CWE-640
CWE-795

Fri, 12 Jun 2026 15:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-346
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 11 Jun 2026 23:00:00 +0000

Type Values Removed Values Added
Title Remote Same‑Origin Policy Bypass via CSRF in Chrome DevTools
Weaknesses CWE-640
CWE-795

Thu, 11 Jun 2026 22:45:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome

Thu, 11 Jun 2026 21:30:00 +0000

Type Values Removed Values Added
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)
References

Subscriptions

Apple Macos
Google Chrome
Linux Linux Kernel
Microsoft Windows
cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-06-12T13:59:15.945Z

Reserved: 2026-06-11T18:16:06.711Z

Link: CVE-2026-12024

cve-icon Vulnrichment

Updated: 2026-06-12T13:58:37.665Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-11T22:16:54.930

Modified: 2026-06-13T00:27:50.240

Link: CVE-2026-12024

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-06-11T20:48:10Z

Links: CVE-2026-12024 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-06-12T19:00:21Z

Weaknesses