SFTP Connection Handshake Vulnerability in Pterodactyl's Wings Server Control Plane
CVE-2026-52856

7.5HIGH

Key Information:

Vendor

Pterodactyl

Status
Wings
Vendor
CVE Published:
31 July 2026

What is CVE-2026-52856?

Pterodactyl's Wings, used for game server management, suffers from a significant vulnerability prior to version 1.13.0. A malformed packet during the SFTP connection handshake leads to a Go panic, potentially causing service interruptions and affecting the stability of the game server management panel. Users are encouraged to upgrade to version 1.13.0 or later to mitigate this issue.

Affected Version(s)

wings < 1.13.0

References

https://github.com/pterodactyl/wings/security/advisories/...
x_refsource_CONFIRM
https://github.com/pterodactyl/wings/commit/8e49c7c0eda81...
x_refsource_MISC
https://github.com/pterodactyl/wings/releases/tag/v1.13.0
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.