What the vulnerability does

01Description

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)

Key dates

02Disclosure timeline

April 28, 2026 CVE published
April 29, 2026 Record updated