CVE-2026-66063

{
  "id": "CVE-2026-66063",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-28T23:17:10.353",
  "lastModified": "2026-10-23T23:10:00.157",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "goshs is a feature-rich single-binary file server for red teamers and developers. Prior to 2.1.5, the httpserver/updown.go multipart upload handler split part.FileName() on / but did not reject .., allowing an unauthenticated upload with filename .. to create a file outside the served tree. This issue is fixed in version 2.1.5."
    },
    {
      "lang": "es",
      "value": "goshs es un servidor de archivos binario único con muchas funciones para equipos rojos y desarrolladores. Antes de la versión 2.1.5, el gestor de carga multipart de httpserver/updown.go dividía part.FileName() por / pero no rechazaba .., permitiendo que una carga no autenticada con el nombre de archivo .. creara un archivo fuera del árbol servido. Este problema se ha corregido en la versión 2.1.5."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "goshs-labs",
          "product": "goshs",
          "versions": [
            {
              "version": "< 2.1.5",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.5
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-29T14:09:21.054164Z",
          "id": "CVE-2026-66063",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/goshs-labs/goshs/commit/f3ef599e409151d1380866e47de8b1afb0bb54fa",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/goshs-labs/goshs/security/advisories/GHSA-wg2q-39h6-66x9",
      "source": "[email protected]"
    }
  ]
}