« Volver al listado

CVE-2026-78590

Estado: AnalizadaAlta (7.3)—

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) in the Kibana Fleet feature can lead to the unauthorized deletion of privileged resources via Path Traversal (CAPEC-126). A low-privileged user holding Fleet Settings write access could cause a subsequent administrative action to act on unintended internal resources, resulting in the deletion of privileged resources such as user accounts and other organizational assets. Exploitation requires an administrator to interact with the affected Fleet interface.

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.

Path traversal en Kibana Fleet que requiere interacción del administrador (UI:R) para eliminar recursos privilegiados. La vulnerabilidad permite a usuario con permisos bajos inducir acciones administrativas no autorizadas (T1531: Account Access Removal).

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

Application Isolation and SandboxingExploit ProtectionUpdate Software

Tecnologías afectadas (1)

Elastic — Kibana

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-78590",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-78590",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-02T15:45:27.397549Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@elastic.co",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.3,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 2.1
      }
    ]
  },
  "affected": [
    {
      "source": "security@elastic.co",
      "affectedData": [
        {
          "vendor": "Elastic",
          "product": "Kibana",
          "versions": [
            {
              "status": "affected",
              "version": "8.0.0",
              "versionType": "semver",
              "lessThanOrEqual": "8.19.17"
            },
            {
              "status": "affected",
              "version": "9.0.0",
              "versionType": "semver",
              "lessThanOrEqual": "9.3.5"
            },
            {
              "status": "affected",
              "version": "9.4.0",
              "versionType": "semver",
              "lessThanOrEqual": "9.4.2"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-09-02T15:17:40.433",
  "references": [
    {
      "url": "https://discuss.elastic.co/t/kibana-8-19-18-9-3-6-9-4-3-security-update-esa-2026-158/390113",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@elastic.co"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@elastic.co",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22) in the Kibana Fleet feature can lead to the unauthorized deletion of privileged resources via Path Traversal (CAPEC-126). A low-privileged user holding Fleet Settings write access could cause a subsequent administrative action to act on unintended internal resources, resulting in the deletion of privileged resources such as user accounts and other organizational assets. Exploitation requires an administrator to interact with the affected Fleet interface."
    }
  ],
  "lastModified": "2026-09-03T13:43:33.950",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "643BF0A7-AB33-4F11-80E1-D3590562632E",
              "versionEndExcluding": "8.19.18",
              "versionStartIncluding": "8.0.0"
            },
            {
              "criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "ECDB67E0-0BAC-4158-A3A9-D38EB1CEAC8A",
              "versionEndExcluding": "9.3.6",
              "versionStartIncluding": "9.0.0"
            },
            {
              "criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A54D142F-22A7-4324-933D-02DCDBF32A4E",
              "versionEndExcluding": "9.4.3",
              "versionStartIncluding": "9.4.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@elastic.co"
}