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CVE-2026-19444

Estado: Pendiente de análisisMedia (6.5)—

A path traversal vulnerability was discovered in the Kubernetes kubectl client's kubectl cp command on Windows. When copying files from a container, kubectl runs tar inside the container to build a tar archive, transfers it over the network, and unpacks it on the local machine. If the tar binary in the container is malicious, it can execute arbitrary code and emit unexpected output, allowing an attacker who controls container contents to write files to arbitrary paths on the user's local machine when kubectl cp is invoked, limited only by the system permissions of the local user. This issue only affects kubectl clients running on Windows.

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.

Requiere interacción del usuario (kubectl cp) y control del contenedor. Impacto principal: escritura arbitraria de archivos (T1565.001); secundario: ejecución de código mediante tar malicioso (T1059.003).

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

Restrict File and Directory PermissionsRemote Data StorageExecution PreventionEncrypt Sensitive InformationApplication Isolation and SandboxingExploit Protection

Tecnologías afectadas (1)

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

Kubernetes — KubectlAI

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2026-19444",
  "cveTags": [],
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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
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              "technicalImpact": "partial"
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          "version": "2.0.3",
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          "repo": "https://github.com/kubernetes/kubernetes",
          "vendor": "Kubernetes",
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          "versions": [
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              "version": "v1.36.0",
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  "published": "2026-09-28T12:17:36.723",
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      "source": "jordan@liggitt.net"
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    {
      "url": "https://github.com/kubernetes/kubernetes/pull/141296",
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  "vulnStatus": "Awaiting Analysis",
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    {
      "lang": "en",
      "value": "A path traversal vulnerability was discovered in the Kubernetes kubectl client's kubectl cp command on Windows. When copying files from a container, kubectl runs tar inside the container to build a tar archive, transfers it over the network, and unpacks it on the local machine. If the tar binary in the container is malicious, it can execute arbitrary code and emit unexpected output, allowing an attacker who controls container contents to write files to arbitrary paths on the user's local machine when kubectl cp is invoked, limited only by the system permissions of the local user. This issue only affects kubectl clients running on Windows."
    }
  ],
  "lastModified": "2026-09-29T21:39:02.570",
  "sourceIdentifier": "jordan@liggitt.net"
}