CVE-2026-67614: Usmannasir CyberPanel

Critical severity, CVSS 9.8. EPSS: 1% chance of exploitation in the next 30 days.

CyberPanel before 3.0.0 contains a hard-coded JWT secret vulnerability in the WebTerminal FastAPI SSH service that allows unauthenticated remote attackers to forge valid authentication tokens and obtain an interactive root shell via WebSocket on port 8888. Attackers can craft a forged JWT signed with the hardcoded secret value, specifying ssh_user=root, to authenticate to the terminal service without any valid credentials and receive a root shell.

Affected products

• Usmannasir CyberPanel: before 3.0.0 (fixed in 3.0.0)

Published 2026-08-13. Last modified 2026-09-08.