CVE-2026-54593
Pterodactyl's improper JWT scoping allows subuser to upload files when not explicitly granted `file.create` permissions
Impact
Pterodactyl is a free, open-source game server management panel. Prior to Panel version 1.12.3 and Wings version 1.12.2, the Wings /upload/file endpoint accepted any valid panel-signed JWT that contained server_uuid, user_uuid, and unique_id claims without checking the token's intended purpose; because the Panel issues JWTs carrying those same claims for lower-privilege operations such as WebSocket authentication and file-download links, an authenticated subuser could reuse one of those tokens (for example a WebSocket token obtained with only the websocket.connect permission) by replaying it against /upload/file to write arbitrary files to the same server, despite never being granted the file.create permission. This issue is fixed in Panel version 1.12.3 and Wings version 1.12.2.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| composer | pterodactyl/panel | < 1.12.3 | 1.12.3 |
| go | github.com/pterodactyl/wings | < 1.12.2 | 1.12.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-8r6w-3qq5-4p4r
- https://github.com/pterodactyl/panel/security/advisories/GHSA-8r6w-3qq5-4p4r
- https://github.com/pterodactyl/panel/pull/5636
- https://github.com/pterodactyl/panel/commit/7ffcd636310bb72b54bac3280d2a15e727feded7
- https://github.com/pterodactyl/wings/commit/d0ddc80844479302abdaf9654de3bacd511c0f5c