CVE-2026-52856highCWE-129CWE-248CWE-617CWE-755

CVE-2026-52856: high-severity vulnerability in pterodactyl wings

Wings: Maliciously crafted packet during SFTP connection handshake causes denial of service

Published

Follow this CVE+ Monitor wings+ Monitor github.com/pterodactyl/wings

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

41Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 7.5epss 0.6%
from disclosure to weapon80 days
Published on NVDJul 31
1st PoC+80d
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
pterodactyl · wings
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — pterodactyl wings

In the same product, most dangerous first.

CVE-2023-25168CRITICALSymbolic Link (Symlink) Following allowing the deletion of files and directories on the host system in wingsEPSS 1.0%CVE-2023-32080CRITICALWings vulnerable to escape to host from installation containerEPSS 0.9%CVE-2023-25152HIGHSymbolic Link (Symlink) Following in github.com/pterodactyl/wingsEPSS 0.7%CVE-2026-21696HIGHEndless reprocessing/reupload of activity log data due to SQLite max parameters limit not being consideredEPSS 0.6%CVE-2024-27102CRITICALImproper isolation of server file access in github.com/pterodactyl/wingsEPSS 0.5%CVE-2024-34066HIGHArbitrary File Write/Read in Pterodactyl wingsEPSS 0.5%