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.

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}}, {{conf…

Vulnerability class: Information Disclosure

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.