CVE-2026-11242

chromium-browser: Insufficient validation of untrusted input in Plugins

Published Jun 4, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
Insufficient validation of untrusted input in Plugins in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)

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 chromium-browser: Insufficient validation of untrusted input in Plugins
Weaknesses CWE-1173
References
Metrics threat_severity

None

threat_severity

Low

Type Values Removed Values Added
Title Cross-Origin Data Leak via Untrusted Plugin Input in Chrome
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
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', '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 Cross-Origin Data Leak via Untrusted Plugin Input in Chrome
Type Values Removed Values Added
Description Insufficient validation of untrusted input in Plugins in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)
Weaknesses CWE-20
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Jun 5, 2026, 12:34 PM
Reserved
Jun 4, 2026, 5:11 PM
Status
Analyzed
Published
Jun 5, 2026, 12:17 AM
Modified
Jul 23, 2026, 7:10 AM
Severity
Low
Public date
Jun 2, 2026, 12:00 AM