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EPSS 0.3%top 73%

CVE-2026-52856: CWE-248: Uncaught Exception in pterodactyl wings

0
High
VulnerabilityCVE-2026-52856cvecve-2026-52856cwe-248cwe-617cwe-129cwe-755gcveosvghsa-ghrq-5wpp-hxx5ghsago
Published: 07/31/2026 (07/31/2026, 16:20:31 UTC)
Source: CVE Database V5
Vendor/Project: pterodactyl
Product: wings

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 v3.1

Score 7.5high

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected software

pterodactyl

wings

Affected versions
<1.13.0
Gomore threats →ai
github.com/pterodactyl/wings
pkg:golang/github.com/pterodactyl/wings
Affected versions
<1.13.0

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 07/31/2026, 19:34:27 UTC

Technical Analysis

CVE-2026-52856 affects Pterodactyl Wings, the server control plane component of the Pterodactyl game server management panel. Versions before 1.13.0 are vulnerable to a denial of service caused by an uncaught exception (Go panic) triggered by a malformed packet during the SFTP handshake. This vulnerability is categorized under CWE-248 (Uncaught Exception), with related weaknesses CWE-617, CWE-129, and CWE-755. The CVSS 3.1 base score is 7.5, indicating high severity, with network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability (denial of service).

Potential Impact

Successful exploitation causes a denial of service by crashing the Wings server process due to an uncaught exception during SFTP handshake. There is no impact on confidentiality or integrity reported.

Mitigation Recommendations

Upgrade to Pterodactyl Wings version 1.13.0 or later where this issue is fixed. Patch status is confirmed by the vendor stating the fix is included in version 1.13.0. No other mitigations are specified.

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Technical Details

Data Version
5.2
Assigner Short Name
GitHub_M
Date Reserved
2026-06-08T18:41:27.724Z
Cvss Version
3.1
State
PUBLISHED

Threat ID: 6a6cf74bbf32cb7a34294803

Added to database: 07/31/2026, 19:28:11 UTC

Last enriched: 07/31/2026, 19:34:27 UTC

Last updated: 09/14/2026, 22:01:35 UTC

Views: 63

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