SEPTEMBER 20, 2026
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Case File

CVE-2026-54593

HIGH · CVSS 8.1 EPSS 0.36% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-28 · Last synced 2026-08-27

CyberRota Analysis

AI-Generated

The vulnerability affects the Pterodactyl game server management panel, specifically the Wings /upload/file endpoint, which improperly validates JWT tokens, allowing authenticated subusers to exploit lower-privilege tokens to upload arbitrary files. This can lead to unauthorized file manipulation on the server, posing a significant security risk. Organizations using Pterodactyl should prioritize updating to Panel version 1.12.3 and Wings version 1.12.2 to mitigate this high-severity issue.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

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CVE
CVE-2026-54593
Severity
HIGH
CVSS
8.1
EPSS
0.36%

Original NVD Description

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.