« Volver al listado

CVE-2026-78583

Estado: AnalizadaAlta (8.1)—

Incorrect Authorization (CWE-863) in Kibana can lead to privilege escalation via Input Data Manipulation (CAPEC-153). Elasticsearch cluster privilege declarations originating from integration packages were not validated before being used to mint credentials for enrolled Elastic Agents. A user holding Fleet management privileges could therefore cause every Elastic Agent on a targeted policy to receive a credential carrying arbitrarily elevated Elasticsearch cluster privileges, up to and including full cluster administration.

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.

CWE-863 (autorización incorrecta) en Kibana permite escalada de privilegios remotamente sin interacción. Usuario con permisos Fleet manipula declaraciones de privilegios para otorgar credenciales elevadas de administrador a Elastic Agents.

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

Privileged Account ManagementUser Account ManagementThreat Intelligence ProgramNetwork SegmentationMulti-factor AuthenticationDisable or Remove Feature or Program

Tecnologías afectadas (1)

Elastic — Kibana

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-78583",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-78583",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-09-03T18:48:59.984682Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security@elastic.co",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 8.1,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security@elastic.co",
      "affectedData": [
        {
          "vendor": "Elastic",
          "product": "Kibana",
          "versions": [
            {
              "status": "affected",
              "version": "8.0.0",
              "versionType": "semver",
              "lessThanOrEqual": "8.19.20"
            },
            {
              "status": "affected",
              "version": "9.0.0",
              "versionType": "semver",
              "lessThanOrEqual": "9.4.5"
            },
            {
              "status": "affected",
              "version": "9.5.0",
              "versionType": "semver",
              "lessThanOrEqual": "9.5.2"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2026-09-03T19:17:28.550",
  "references": [
    {
      "url": "https://discuss.elastic.co/t/kibana-8-19-21-9-4-6-9-5-3-security-update-esa-2026-140/390158",
      "tags": [
        "Vendor Advisory",
        "Mitigation"
      ],
      "source": "security@elastic.co"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@elastic.co",
      "description": [
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Incorrect Authorization (CWE-863) in Kibana can lead to privilege escalation via Input Data Manipulation (CAPEC-153). Elasticsearch cluster privilege declarations originating from integration packages were not validated before being used to mint credentials for enrolled Elastic Agents. A user holding Fleet management privileges could therefore cause every Elastic Agent on a targeted policy to receive a credential carrying arbitrarily elevated Elasticsearch cluster privileges, up to and including full cluster administration."
    }
  ],
  "lastModified": "2026-09-08T16:48:51.010",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B1271149-569F-44B7-A74E-0DF1247372FE",
              "versionEndExcluding": "8.19.21",
              "versionStartIncluding": "8.0.0"
            },
            {
              "criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0742EFB8-8BAF-49C3-A03C-3F3AA8748C06",
              "versionEndExcluding": "9.4.6",
              "versionStartIncluding": "9.0.0"
            },
            {
              "criteria": "cpe:2.3:a:elastic:kibana:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "09DBAE82-4348-4189-BFB0-E7D7549FD2D2",
              "versionEndExcluding": "9.5.3",
              "versionStartIncluding": "9.5.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@elastic.co"
}