What is CVE-2026-52857?

CVE-2026-52857 is a medium-severity vulnerability in Pterodactyl Wings, classified under Uncontrolled Resource Consumption. CVSS score: 5.5/10. Published 2026-07-31.

How severe is CVE-2026-52857?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Resource exhaustion in Pterodactyl Wings

CVE-2026-52857

Wings is the server control plane for Pterodactyl, a free, open-source game server management panel. Prior to 1.13.0, unbounded json, yaml, and xml configuration-file parsers in parser.go can process an oversized non-file parser configurat…

Vulnerability class: DoS (Denial of Service)

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Pterodactyl Wings — versions < 1.13.0

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-52857?: CVE-2026-52857 is a medium-severity vulnerability in Pterodactyl Wings, classified under Uncontrolled Resource Consumption. CVSS score: 5.5/10. Published 2026-07-31.
How severe is CVE-2026-52857?: Medium severity. CVSS v3 base score is 5.5 out of 10.