CVE-2026-103630: Google Chrome

Critical severity, CVSS 9.6. EPSS: 0.3% chance of exploitation in the next 30 days.

Use after free in FedCM in Google Chrome prior to 154.0.8037.97 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

Affected products

• Google Chrome: before 154.0.8037.97 (fixed in 154.0.8037.97)

Published 2026-10-02. Last modified 2026-10-06.