🛡️ CVE-2026-52856 — wings

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-129 NVD
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Weakness class

CVE-2026-52856 is classified as CWE-129: Improper Validation of Array Index. An index derived from input is used without a range check, so the access lands outside the array.

Affected software

CVE-2026-52856 is recorded against 2 packages.

  • github.com/pterodactyl/wings
  • unknown

Timeline and source

Published on 31 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com (Web)
github.com (Web)
github.com (Package)
github.com (Web)

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE CWE-129
Public Exploit ✅ No
Source NVD
Published 2026-07-31
Updated 2026-08-12
Modified 2026-07-31
Fix URL N/A

Affected Packages

Software From version Fixed in
github.com/pterodactyl/wings — —
unknown — —

Similar Threats

Site Security Check

Is wings part of your stack?

CVE-2026-52856 is rated CVSS 8.0 High. BotEraser scans your installation against known CVE records and tells you whether this vulnerability applies to the versions you actually run.

Scan My Site Free →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.