CVE-2026-52856
Received Received - Intake

Wings Server Control Plane Go Panic via SFTP Handshake

Vulnerability report for CVE-2026-52856, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-07-31

Last updated on: 2026-07-31

Assigner: GitHub, Inc.

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.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-07-31
Last Modified
2026-07-31
Generated
2026-07-31
AI Q&A
2026-07-31
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
pterodactyl wings to 1.13.0 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-755 The product does not handle or incorrectly handles an exceptional condition.
CWE-129 The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.
CWE-617 The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.
CWE-248 An exception is thrown from a function, but it is not caught.

Attack-Flow Graph

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Executive Summary

Wings is a server control plane for Pterodactyl, a game server management panel. A vulnerability exists in versions prior to 1.13.0 where a malformed packet during the SFTP connection handshake causes a Go panic, leading to a denial of service.

Impact Analysis

This vulnerability can cause the Wings server to crash due to a denial of service when a malformed SFTP packet is received. This may disrupt game server management operations.

Mitigation Strategies

Update Wings to version 1.13.0 or later to address the malformed packet handling issue. Monitor network traffic for unusual SFTP handshake patterns that may indicate exploitation attempts.

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