Vulnerability-Lookup

GHSA-GHRQ-5WPP-HXX5

Vulnerability from github – Published: 2026-07-31 16:20 – Updated: 2026-07-31 16:20

Summary

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

Details

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.

Severity

7.5 (High)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/pterodactyl/wings"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.13.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-52856"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-129",
      "CWE-20",
      "CWE-248",
      "CWE-400",
      "CWE-617",
      "CWE-755"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-31T16:20:25Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "### Summary\nA maliciously crafted packet received \u0026 parsed during the SFTP connection handshake will cause a Go panic.\n\n### Impact\nAll wings users with an open SFTP port.\n\n### Workarounds\nClose SFTP port.",
  "id": "GHSA-ghrq-5wpp-hxx5",
  "modified": "2026-07-31T16:20:25Z",
  "published": "2026-07-31T16:20:25Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/pterodactyl/wings/security/advisories/GHSA-ghrq-5wpp-hxx5"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pterodactyl/wings/commit/8e49c7c0eda815d3ada171831876a1c14c493026"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/pterodactyl/wings"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pterodactyl/wings/releases/tag/v1.13.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Wings: Maliciously crafted packet during SFTP connection handshake causes denial of service"
}

CVE-2026-52856 (GCVE-0-2026-52856)

Vulnerability from cvelistv5 – Published: 2026-07-31 16:20 – Updated: 2026-07-31 18:57

Title

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

Summary

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.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-248 - Uncaught Exception
CWE-617 - Reachable Assertion
CWE-129 - Improper Validation of Array Index
CWE-755 - Improper Handling of Exceptional Conditions

Assigner

GitHub_M

References

3 references

URL	Tags
https://github.com/pterodactyl/wings/security/adv…	x_refsource_CONFIRM
https://github.com/pterodactyl/wings/commit/8e49c…	x_refsource_MISC
https://github.com/pterodactyl/wings/releases/tag…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
pterodactyl	wings	Affected: < 1.13.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-52856",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-31T18:57:27.226859Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-31T18:57:35.513Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "wings",
          "vendor": "pterodactyl",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.13.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-248",
              "description": "CWE-248: Uncaught Exception",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-617",
              "description": "CWE-617: Reachable Assertion",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-129",
              "description": "CWE-129: Improper Validation of Array Index",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-755",
              "description": "CWE-755: Improper Handling of Exceptional Conditions",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-31T16:20:31.222Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/pterodactyl/wings/security/advisories/GHSA-ghrq-5wpp-hxx5",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/pterodactyl/wings/security/advisories/GHSA-ghrq-5wpp-hxx5"
        },
        {
          "name": "https://github.com/pterodactyl/wings/commit/8e49c7c0eda815d3ada171831876a1c14c493026",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pterodactyl/wings/commit/8e49c7c0eda815d3ada171831876a1c14c493026"
        },
        {
          "name": "https://github.com/pterodactyl/wings/releases/tag/v1.13.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/pterodactyl/wings/releases/tag/v1.13.0"
        }
      ],
      "source": {
        "advisory": "GHSA-ghrq-5wpp-hxx5",
        "discovery": "UNKNOWN"
      },
      "title": "Wings: Maliciously crafted packet during SFTP connection handshake causes denial of service"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-52856",
    "datePublished": "2026-07-31T16:20:31.222Z",
    "dateReserved": "2026-06-08T18:41:27.724Z",
    "dateUpdated": "2026-07-31T18:57:35.513Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

GHSA-GHRQ-5WPP-HXX5

Summary

Impact

Workarounds

CVE-2026-52856 (GCVE-0-2026-52856)

Tags

Sightings

Nomenclature