FKIE_CVE-2026-61617

Vulnerability from fkie_nvd - Published: 2026-08-26 22:16 - Updated: 2026-08-27 17:19
Severity
7.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Summary
Wings is the server control plane for the Pterodactyl game-server management panel. In versions up to and including 1.13.2, the SFTP write path does not enforce a server's disk quota during a transfer, allowing a tenant with SFTP write access to a single server to exhaust the host node's physical disk and take down every server on it. Wings checks available space only once, as a boolean, when the write handle is opened, using a stale cached usage value and without knowing the size of the incoming data, and it then returns a raw, unaccounted file handle that is never re-checked as the transfer proceeds. A single upload can therefore be written without bound, far beyond the configured disk limit, until the node's disk is full, and because a server stopped for exceeding its limit is not treated as suspended, SFTP writes are still accepted even after the quota is already exceeded. This issue is fixed in version 1.13.3.
References
security-advisories@github.comhttps://github.com/pterodactyl/wings/commit/da1a216cfff5867fa66be32cb1edb93e37fd71ff
security-advisories@github.comhttps://github.com/pterodactyl/wings/security/advisories/GHSA-8j54-xcwx-597p
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/pterodactyl/wings/security/advisories/GHSA-8j54-xcwx-597p
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "wings",
          "vendor": "pterodactyl",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.13.3"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Wings is the server control plane for the Pterodactyl game-server management panel. In versions up to and including 1.13.2, the SFTP write path does not enforce a server\u0027s disk quota during a transfer, allowing a tenant with SFTP write access to a single server to exhaust the host node\u0027s physical disk and take down every server on it. Wings checks available space only once, as a boolean, when the write handle is opened, using a stale cached usage value and without knowing the size of the incoming data, and it then returns a raw, unaccounted file handle that is never re-checked as the transfer proceeds. A single upload can therefore be written without bound, far beyond the configured disk limit, until the node\u0027s disk is full, and because a server stopped for exceeding its limit is not treated as suspended, SFTP writes are still accepted even after the quota is already exceeded. This issue is fixed in version 1.13.3."
    }
  ],
  "id": "CVE-2026-61617",
  "lastModified": "2026-08-27T17:19:02.473",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 4.0,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-61617",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-27T16:05:12.017061Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-26T22:16:25.247",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/pterodactyl/wings/commit/da1a216cfff5867fa66be32cb1edb93e37fd71ff"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/pterodactyl/wings/security/advisories/GHSA-8j54-xcwx-597p"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/pterodactyl/wings/security/advisories/GHSA-8j54-xcwx-597p"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        },
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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