CVE-2026-11212

chromium-browser: Insufficient policy enforcement in DevTools

Published Jun 4, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
Insufficient policy enforcement in DevTools in Google Chrome prior to 149.0.7827.53 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a crafted Chrome Extension. (Chromium security severity: Medium)

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-6325-1 chromium security update
History
Type Values Removed Values Added
Title Chrome DevTools Policy Gap Enables Cross‑Origin Data Leakage chromium-browser: Insufficient policy enforcement in DevTools
Weaknesses CWE-346
References
Metrics threat_severity

None

threat_severity

Moderate

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
Type Values Removed Values Added
Title Chrome DevTools Policy Gap Enables Cross‑Origin Data Leakage
Type Values Removed Values Added
Title Chrome DevTools Policy Enforcement Vulnerability Allows Cross-Origin Data Leak via Malicious Extension
Weaknesses CWE-200
Type Values Removed Values Added
Weaknesses CWE-284
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'}

ssvc

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

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Title Chrome DevTools Policy Enforcement Vulnerability Allows Cross-Origin Data Leak via Malicious Extension
Weaknesses CWE-200
Type Values Removed Values Added
Description Insufficient policy enforcement in DevTools in Google Chrome prior to 149.0.7827.53 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a crafted Chrome Extension. (Chromium security severity: Medium)
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Jun 5, 2026, 2:31 PM
Reserved
Jun 4, 2026, 5:10 PM
Status
Analyzed
Published
Jun 4, 2026, 11:17 PM
Modified
Jul 23, 2026, 7:10 AM
Severity
Moderate
Public date
Jun 2, 2026, 12:00 AM