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CVE-2026-71566

Estado: Pendiente de análisisCrítica (9.3)—

FakeFish handles incoming credentials by passing them down to scripts. This works for real hardware because in the end it's up to the BMC to validate them. However, KubeVirt relies on a KUBECONFIG file mounted to the container and completely ignores the credentials. This allows any user of the cluster to control VMs of the user that created fakefish, power them on and off, and mount arbitrary CD images to them.

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.

AV:N/PR:N/UI:N indica explotación remota sin autenticación (T1190). Credenciales ignoradas (T1078) y capacidad de apagar VMs (DoS via T1499.004) son impactos confirmados por el texto.

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 ManagementFilter Network TrafficApplication Developer GuidanceActive Directory ConfigurationVulnerability ScanningUser Training

Tecnologías afectadas (2)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Fakefish — FakefishAIKubevirt — KubevirtAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-71566",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-71566",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-17T16:00:04.132607Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "74b3a70d-cca6-4d34-9789-e83b222ae3be",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 9.3,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:H",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 4.7,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "74b3a70d-cca6-4d34-9789-e83b222ae3be",
      "affectedData": [
        {
          "repo": "https://github.com/openshift-metal3/fakefish/",
          "vendor": "openshift-metal3",
          "product": "fakefish",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "git",
              "lessThanOrEqual": "28f9a6b"
            },
            {
              "status": "unaffected",
              "version": "526550a",
              "versionType": "git"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2026-08-17T15:16:57.610",
  "references": [
    {
      "url": "https://github.com/openshift-metal3/fakefish/security/advisories/GHSA-qpfr-jqjq-v83w",
      "source": "74b3a70d-cca6-4d34-9789-e83b222ae3be"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "74b3a70d-cca6-4d34-9789-e83b222ae3be",
      "description": [
        {
          "lang": "en",
          "value": "CWE-306"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "FakeFish handles incoming credentials by passing them down\n to scripts. This works for real hardware because in the end it's up to \nthe BMC to validate them. However, KubeVirt relies on a KUBECONFIG file \nmounted to the container and completely ignores the credentials. This allows any user of the cluster to control VMs of the \nuser that created fakefish, power them on and off, and mount arbitrary CD\n images to them."
    }
  ],
  "lastModified": "2026-09-01T21:03:04.987",
  "sourceIdentifier": "74b3a70d-cca6-4d34-9789-e83b222ae3be"
}