CVE-2026-7360

chromium-browser: Insufficient validation of untrusted input in Compositing

Published Apr 28, 2026 CVSS 3.1 · 3.1 Low EPSS < 1% KEV · Not listed
Description
Insufficient validation of untrusted input. in Compositing in Google Chrome prior to 147.0.7727.138 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: High)

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Debian DSA Debian DSA DSA-6239-1 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
Metrics cvssV3_1

{'score': 8.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N'}

ssvc

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

cvssV3_1

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

Type Values Removed Values Added
Title Chrome Site Isolation Bypass via Input Validation Flaw chromium-browser: Insufficient validation of untrusted input in Compositing
Weaknesses CWE-1173
References
Metrics threat_severity

None

cvssV3_1

{'score': 8.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N'}

threat_severity

Important

Type Values Removed Values Added
Title Chrome Site Isolation Bypass via Input Validation Flaw
Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Description Insufficient validation of untrusted input. in Compositing in Google Chrome prior to 147.0.7727.138 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: High)
Weaknesses CWE-20
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Apr 29, 2026, 1:26 PM
Reserved
Apr 28, 2026, 8:02 PM
Status
Analyzed
Published
Apr 28, 2026, 11:16 PM
Modified
Jul 24, 2026, 8:10 AM
Severity
Important
Public date
Apr 28, 2026, 12:00 AM