CVE-2026-11133

chromium-browser: Insufficient policy enforcement in Paint

Published Jun 4, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
Insufficient policy enforcement in Paint in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (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
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 Paint Component Same‑Origin Policy Bypass in Google Chrome chromium-browser: Insufficient policy enforcement in Paint
References
Metrics threat_severity

None

threat_severity

Moderate

Type Values Removed Values Added
Title Paint Component Same‑Origin Policy Bypass in Google Chrome
Type Values Removed Values Added
Title Same‑Origin Policy Bypass via Paint in Google Chrome
Weaknesses CWE-790
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'}

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Title Same‑Origin Policy Bypass via Paint in Google Chrome
Weaknesses CWE-790
Type Values Removed Values Added
Description Insufficient policy enforcement in Paint in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: Medium)
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Jun 6, 2026, 3:52 AM
Reserved
Jun 4, 2026, 5:06 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