Vulnerability · Published Jul 31, 2026 · Assigned by GitHub_M
CVE-2026-52856Wings: Maliciously crafted packet during SFTP connection handshake causes denial of service
High 7.5
In plain English
A high-severity security flaw in wings from pterodactyl. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Official description
Wings is the server control plane for Pterodactyl, a free, open-source game server management panel. Prior to 1.13.0, a malformed packet received during the SFTP connection handshake causes a Go panic. This issue is fixed in version 1.13.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/pterodactyl/wings | 1.13.0 | GHSA-ghrq-5wpp-hxx5 |
| Go | github.com/pterodactyl/wings | 1.13.0 | GO-2026-6156 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| pterodactyl | wings | < 1.13.0 |
Weakness: CWE-248, CWE-617, CWE-129, CWE-755 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H