CVE-2026-54593: 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…

PriorityP354high8.1CVSS 3.1

AVNACLPRLUINSUCNIHAH

EPSS

0.36%

28.9th percentile

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

3 ranges

Vendor	Product	Version range	Fixed in
github.com	pterodactyl_wings	>= 0 < 1.12.2	1.12.2
pterodactyl	panel	< 1.12.3	1.12.3
pterodactyl	panel	>= 0 < 1.12.3	1.12.3

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