Which products and versions are affected by CVE-2026-52856?

Affected: github.com/pterodactyl/wings (go); wings. The full list is in the CVE brief.

Is CVE-2026-52856 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2026-52856 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2026-52856?

No public exploit code is known.

Is there a fix for CVE-2026-52856?

Fixed versions are available, including github.com/pterodactyl/wings 1.13.0, wings 1.13.0.

How urgently should CVE-2026-52856 be patched?

Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.

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WatchlistHigh

CVE-2026-52856wings Denial of Service

Prior to 1.13.0, a malformed packet received during the SFTP connection handshake causes a Go panic.

Published Jul 31, 2026 · Updated Sep 29, 2026 · Also known as EUVD-2026-51569, GHSA-ghrq-5wpp-hxx5, GO-2026-6156

Key Facts

Patch in the next maintenance window

CVE-2026-52856 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting github.com/pterodactyl/wings (go), wings.
It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
EPSS estimates a 0.6% probability of exploitation in the next 30 days.
Fixed versions are available, including github.com/pterodactyl/wings 1.13.0, wings 1.13.0.
Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.

Scores

CVSS v3.1

7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS (30-day exploit likelihood)

0.6%

Higher than 48.1% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

34/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Proof of concept

Public exploit code

Proof-of-concept links

In-the-wild evidence

Reports of active use

Advisories And Exploit References

advisoryhttps://www.cve.org/CVERecord?id=CVE-2026-52856
advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2026-52856
advisoryGHSA advisory

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 Products

2 affected entries in total

Product	Affected versions	Fixed in
github.com/pterodactyl/wingsgo	See advisory	1.13.0
wings	See advisory	1.13.0

Patched Releases

github.com/pterodactyl/wings

1.13.0

wings