« Volver al listado

CVE-2026-40188

Estado: AnalizadaAlta (7.7)—

goshs is a SimpleHTTPServer written in Go. From 1.0.7 to before 2.0.0-beta.4, the SFTP command rename sanitizes only the source path and not the destination, so it is possible to write outside of the root directory of the SFTP. This vulnerability is fixed in 2.0.0-beta.4.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Acceso de red con autenticación (PR:L) a servicio SFTP remoto; path traversal en rename permite manipular datos fuera del directorio raíz (I:H) y potencialmente alterar archivos del sistema.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Vulnerability ScanningUser TrainingUser Account ManagementThreat Intelligence ProgramRestrict File and Directory PermissionsPrivileged Account Management

Tecnologías afectadas (1)

Goshs — Goshs

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-40188",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-40188",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-13T15:28:25.294603Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 7.7,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 4,
        "exploitabilityScore": 3.1
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "patrickhener",
          "product": "goshs",
          "versions": [
            {
              "status": "affected",
              "version": ">= 1.0.7, < 2.0.0-beta.4"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-04-10T20:16:23.733",
  "references": [
    {
      "url": "https://github.com/patrickhener/goshs/commit/141c188ce270ffbec087844a50e5e695b7da7744",
      "tags": [
        "Patch"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/patrickhener/goshs/releases/tag/v2.0.0-beta.4",
      "tags": [
        "Product",
        "Release Notes"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/patrickhener/goshs/security/advisories/GHSA-2943-crp8-38xx",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/patrickhener/goshs/security/advisories/GHSA-2943-crp8-38xx",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1314"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "goshs is a SimpleHTTPServer written in Go. From 1.0.7 to before 2.0.0-beta.4, the SFTP command rename sanitizes only the source path and not the destination, so it is possible to write outside of the root directory of the SFTP. This vulnerability is fixed in 2.0.0-beta.4."
    }
  ],
  "lastModified": "2026-06-17T10:44:50.500",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:goshs:goshs:*:*:*:*:*:go:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1CC7DF19-7DCC-4ACF-B4ED-789E769A8B3F",
              "versionEndExcluding": "2.0.0",
              "versionStartIncluding": "1.0.7"
            },
            {
              "criteria": "cpe:2.3:a:goshs:goshs:2.0.0:beta1:*:*:*:go:*:*",
              "vulnerable": true,
              "matchCriteriaId": "047ECFC3-056F-4FAC-9B64-5F7C120CFFE1"
            },
            {
              "criteria": "cpe:2.3:a:goshs:goshs:2.0.0:beta2:*:*:*:go:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6EA86AD2-EE6D-4427-9434-A9A49A4D38F9"
            },
            {
              "criteria": "cpe:2.3:a:goshs:goshs:2.0.0:beta3:*:*:*:go:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F44CF6A3-C1BC-4636-A1D5-1ED69A340FE3"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}