CVE-2026-11056: Google Chrome

Critical severity, CVSS 9.6. EPSS: 0.2% chance of exploitation in the next 30 days.

Insufficient validation of untrusted input in SiteIsolation in Google Chrome on Windows prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)

Affected products

• Google Chrome: before 149.0.7827.53 (fixed in 149.0.7827.53)

Published 2026-06-04. Last modified 2026-07-23.