Pterodactyl Panel Allows Cross-Node Server Configuration Disclosure via Remote API Missing Authorization

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

9.2 · CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:L/SA:L · score source

EPSS

• CVE-2026-26016: 0.36% estimated exploitation activity in the next 30 days; percentile 29.85 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Summary A missing authorization check in multiple controllers allows any user with access to a node secret token to fetch information about any server on a Pterodactyl instance, even if that server is associated with a different node. This issue stems from missing logic to verify that the node requesting server data is the same node that the server is associated with. Any authenticated Wings node can retrieve server installation scripts (potentially containing secret values) and manipulate the installation status of servers belonging to other nodes. Wings nodes may also manipulate the transfer status of servers belonging to other nodes. This vulnerability requires a user to acquire a secret access token for a node. We rated this issue based on potential worst outcome. Unless a user gains access to a Wings secret access token they would not be able to access any of these vulnerable endpoints, as every endpoint requires a valid node access token. Details 1. The Remote API endpoint GET…

Published by the source

17 Feb 2026, 18:54 UTC

Last modified by the source

19 Feb 2026, 21:30 UTC

Source last checked

26 Oct 2026, 14:38 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-g7vw-f8p5-c728

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# Patch Next advisory brief: CVE-2026-26016

Advisory: Pterodactyl Panel Allows Cross-Node Server Configuration Disclosure via Remote API Missing Authorization
IDs: CVE-2026-26016, GHSA-g7vw-f8p5-c728
Record: https://patchnext.com/advisories/cve-2026-26016 (revision 1, source checked 26 Oct 2026, 14:38 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Critical (CVSS 9.2)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: pterodactyl/panel 1.12.1. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist pterodactyl/panel: affected < 1.12.1; fixed in 1.12.1

## Suggested inspection (read-only)
- Packagist pterodactyl/panel: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on pterodactyl/panel.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-g7vw-f8p5-c728 (GitHub-reviewed advisory GHSA-g7vw-f8p5-c728 lists affected ranges: Packagist pterodactyl/panel >=0 <1.12.1)

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