CVE-2021-41176: Pterodactyl Panel

Medium severity, CVSS 4.3. EPSS: 0.5% chance of exploitation in the next 30 days.

Pterodactyl is an open-source game server management panel built with PHP 7, React, and Go. In affected versions of Pterodactyl a malicious user can trigger a user logout if a signed in user visits a malicious website that makes a request to the Panel's sign-out endpoint. This requires a targeted attack against a specific Panel instance, and serves only to sign a user out. **No user details are leaked, nor is any user data affected, this is simply an annoyance at worst.** This is fixed in version 1.6.3.

Affected products

• Pterodactyl Panel: before 1.6.3 (fixed in 1.6.3)

Published 2021-10-25. Last modified 2026-06-17.