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CVE-2026-39429

Estado: AnalizadaCrítica (9.1)—

kcp is a Kubernetes-like control plane for form-factors and use-cases beyond Kubernetes and container workloads. Prior to 0.30.3 and 0.29.3, the cache server is directly exposed by the root shard and has no authentication or authorization in place. This allows anyone who can access the root shard to read and write to the cache server. This vulnerability is fixed in 0.30.3 and 0.29.3.

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.

Vector CVSS de red sin autenticación (AV:N/PR:N/UI:N) indica exposición directa. Cache server sin autenticación permite lectura/escritura no autorizada, lo que equivale a obtener credenciales o acceso no autorizado (T1078) y lectura de datos en memoria (T1005).

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

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-39429",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "id": "CVE-2026-39429",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
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              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-04-10T20:49:20.729406Z"
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          "confidentialityImpact": "HIGH"
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  "published": "2026-04-08T21:16:59.313",
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      "tags": [
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
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          "value": "CWE-302"
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          "value": "CWE-862"
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  ],
  "descriptions": [
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      "lang": "en",
      "value": "kcp is a Kubernetes-like control plane for form-factors and use-cases beyond Kubernetes and container workloads. Prior to 0.30.3 and 0.29.3, the cache server is directly exposed by the root shard and has no authentication or authorization in place. This allows anyone who can access the root shard to read and write to the cache server. This vulnerability is fixed in 0.30.3 and 0.29.3."
    },
    {
      "lang": "es",
      "value": "kcp es un plano de control similar a Kubernetes para factores de forma y casos de uso más allá de Kubernetes y las cargas de trabajo de contenedores. Antes de 0.30.3 y 0.29.3, el servidor de caché está directamente expuesto por el fragmento raíz y no tiene autenticación ni autorización implementadas. Esto permite a cualquiera que pueda acceder al fragmento raíz leer y escribir en el servidor de caché. Esta vulnerabilidad está corregida en 0.30.3 y 0.29.3."
    }
  ],
  "lastModified": "2026-07-24T21:10:00.143",
  "configurations": [
    {
      "nodes": [
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