GitHub Advisoryadvisory · Go

GHSA-ghrq-5wpp-hxx5 Wings: Maliciously crafted packet during SFTP connection handshake causes denial of service

HIGH Published 2026-07-31 Modified 2026-07-31 Official page ↗
Aliases
CVE-2026-52856
Ecosystem
Go
Packages
github.com/pterodactyl/wings
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-129, CWE-20, CWE-248, CWE-400, CWE-617, CWE-755
Reviewed
2026-07-31

Affected packages

• Go github.com/pterodactyl/wings: < 1.13.0 → fixed in 1.13.0

Description

Summary A maliciously crafted packet received & parsed during the SFTP connection handshake will cause a Go panic. Impact All wings users with an open SFTP port. Workarounds Close SFTP port.

Related

Alias · CVE (1)

  • CVE-2026-52856 Wings is the server control plane for Pterodactyl, a free, open-source game server management panel. vulnerability

Weakness · CWE (6)

  • CWE-129 Improper Validation of Array Index weakness
  • CWE-20 Improper Input Validation weakness
  • CWE-248 Uncaught Exception weakness
  • CWE-400 Uncontrolled Resource Consumption weakness
  • CWE-617 Reachable Assertion weakness
  • CWE-755 Improper Handling of Exceptional Conditions weakness

References