Wings exposes node configuration secrets through egg configuration-file templating

Exploitation

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

CVSS

9.9 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS

• CVE-2026-52855: 0.51% estimated exploitation activity in the next 30 days; percentile 43.28 (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.

Impact Type: Exposure of sensitive information / insufficiently protected credentials leading to privilege escalation and full node compromise. Wings exposes its entire daemon configuration to the egg configuration-file templating engine. When Wings renders a server's configuration files, any {{config.<path}} placeholder in a replacement value is resolved against the full marshalled daemon configuration, with no restriction on which paths may be read. Because the Panel substitutes user-controlled egg variable values into these replacements before sending them to Wings, a low-privileged user can smuggle a {{config.}} placeholder through a variable value. The placeholder is then resolved by Wings and written into a file inside the user's own server, where it can be read via the file manager or SFTP. This allows reading, among other values: - {{config.token}} - the node's daemon token, which is both the API bearer for the Panel⇆Wings channel and the HMAC signing key for every JWT the…

Published by the source

31 Jul 2026, 16:16 UTC

Last modified by the source

18 Aug 2026, 15:00 UTC

Source last checked

26 Oct 2026, 15:27 UTC

1. Revision 3 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-pfvc-3p5h-x7h6

2. Revision 2 · amended · 24 Oct 2026

   Amended from osv record GO-2026-6158

3. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-pfvc-3p5h-x7h6

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# Patch Next advisory brief: CVE-2026-52855

Advisory: Wings exposes node configuration secrets through egg configuration-file templating
IDs: CVE-2026-52855, GHSA-pfvc-3p5h-x7h6
Record: https://patchnext.com/advisories/cve-2026-52855 (revision 3, source checked 26 Oct 2026, 15:27 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Critical (CVSS 9.9)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: github.com/pterodactyl/wings 1.12.3. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go github.com/pterodactyl/wings: affected < 1.12.3; fixed in 1.12.3

## Suggested inspection (read-only)
- Go github.com/pterodactyl/wings: 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 github.com/pterodactyl/wings.
- 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://osv.dev/vulnerability/GHSA-pfvc-3p5h-x7h6 (OSV record GHSA-pfvc-3p5h-x7h6 lists affected ranges: Go github.com/pterodactyl/wings >=0 <1.12.3 (fixed))
- Verified: https://osv.dev/vulnerability/GO-2026-6158 (OSV record GO-2026-6158 lists affected ranges: Go github.com/pterodactyl/wings >=0 <1.12.3 (fixed))
- Verified: https://github.com/advisories/GHSA-pfvc-3p5h-x7h6 (GitHub-reviewed advisory GHSA-pfvc-3p5h-x7h6 lists affected ranges: Go github.com/pterodactyl/wings >=0 <1.12.3)

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