Information disclosure in Pterodactyl Wings
CVE-2026-52855
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.
Vulnerability class: Information Disclosure
EPSS: 0.003 (21.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Pterodactyl Wings — versions < 1.12.3
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-52855?
- CVE-2026-52855 is a critical-severity vulnerability in Pterodactyl Wings, classified under Information Disclosure. CVSS score: 9.9/10. Published 2026-07-31.
- How severe is CVE-2026-52855?
- Critical severity. CVSS v3 base score is 9.9 out of 10.