CVE-2026-12437: Google Chrome

High severity, CVSS 8.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Use after free in WebShare in Google Chrome on Windows prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)

Affected products

• Google Chrome: before 149.0.7827.155 (fixed in 149.0.7827.155)

Published 2026-06-17. Last modified 2026-06-18.