CVE-2026-54593
Pterodactyl's improper JWT scoping allows subuser to upload files when not explicitly granted `file.create` permissions
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
| NVDNVD · Deferred | 3.1 | High8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.68% · top 47% of all CVEs (5 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.1.
Weakness
Affected products
- affected < 1.12.3
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gogithub.com/pterodactyl/wingsGHSA-8r6w-3qq5-4p4r (opens in a new tab)
- Packagistpterodactyl/panelGHSA-8r6w-3qq5-4p4r (opens in a new tab)
References (4)
- https://github.com/pterodactyl/panel/security/advisories/GHSA-8r6w-3qq5-4p4r (opens in a new tab)x_refsource_CONFIRM
- https://github.com/pterodactyl/panel/pull/5636 (opens in a new tab)x_refsource_MISC
- https://github.com/pterodactyl/panel/commit/7ffcd636310bb72b54bac3280d2a15e727feded7 (opens in a new tab)x_refsource_MISC
- https://github.com/pterodactyl/wings/commit/d0ddc80844479302abdaf9654de3bacd511c0f5c (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-8r6w-3qq5-4p4r (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-54593)Record last updated .