CVE-2026-52857
MediumCVSS 5.5Summary
Wings, the server control plane for Pterodactyl, prior to version 1.13.0 has unbounded JSON, YAML, and XML configuration file parsers. They can process an oversized configuration file and exhaust Wings process memory.
Risk Assessment
An attacker can cause a denial of service (DoS) by sending a malicious configuration file, leading to Wings process crash.
Recommendation
Update Wings to version 1.13.0 or later, which includes a fix limiting the size of processed configuration files.
Other vulnerabilities in Wings
See all- CVE-2026-52855Critical
Wings, the server control plane for Pterodactyl, prior to 1.12.3 allows a low-privileged user to read sensitive configuration data (token, token_id, Docker registries) via {{config.}} placeholders in egg configuration-file templates.
- CVE-2026-61617High
Wings (the server control plane for Pterodactyl) versions up to and including 1.13.2 do not enforce a server's disk quota during an SFTP transfer, allowing a tenant with SFTP write access to exhaust the host node's physical disk and take down every server on it. Available space is checked only once, when the write handle is opened, using a stale cached value and without knowing the size of the incoming data.
- CVE-2026-52856High
Wings, the server control plane for Pterodactyl, prior to version 1.13.0 contains a vulnerability causing a Go panic due to a malformed packet received during the SFTP connection handshake. This issue is fixed in version 1.13.0.
Original NVD description (English source)
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 configuration file and exhaust Wings process memory. This issue is fixed in version 1.13.0.