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CVE-2026-32711

Estado: AnalizadaAlta (7.8)—

pydicom is a pure Python package for working with DICOM files. Versions 2.0.0-rc.1 through 3.0.1 are vulnerable to Path Traversal through a maliciously crafted DICOMDIR ReferencedFileID when it is set to a path outside the File-set root. pydicom resolves the path only to confirm that it exists, but does not verify that the resolved path remains under the File-set root. Subsequent public FileSet operations such as copy(), write(), and remove()+write(use_existing=True) use that unchecked path in file I/O operations. This allows arbitrary file read/copy and, in some flows, move/delete outside the File-set root. This issue has been fixed in version 3.0.2.

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.

UI:R indica interacción del usuario (abrir archivo DICOM preparado). CWE-22 Path Traversal permite lectura arbitraria (T1005) y manipulación de archivos (T1565) fuera del directorio raíz.

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

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  "id": "CVE-2026-32711",
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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "poc"
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              "automatable": "no"
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          "version": "2.0.3",
          "timestamp": "2026-03-20T16:41:24.059218Z"
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          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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  "published": "2026-03-20T02:16:33.600",
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      "lang": "en",
      "value": "pydicom is a pure Python package for working with DICOM files. Versions 2.0.0-rc.1 through 3.0.1 are vulnerable to Path Traversal through a maliciously crafted DICOMDIR ReferencedFileID when it is set to a path outside the File-set root. pydicom resolves the path only to confirm that it exists, but does not verify that the resolved path remains under the File-set root. Subsequent public FileSet operations such as copy(), write(), and remove()+write(use_existing=True) use that unchecked path in file I/O operations. This allows arbitrary file read/copy and, in some flows, move/delete outside the File-set root. This issue has been fixed in version 3.0.2."
    },
    {
      "lang": "es",
      "value": "pydicom es un paquete de Python puro para trabajar con archivos DICOM. Las versiones 2.0.0-rc.1 hasta la 3.0.1 son vulnerables a salto de ruta a través de un ReferencedFileID de DICOMDIR creado maliciosamente cuando se establece a una ruta fuera de la raíz del conjunto de archivos. pydicom resuelve la ruta solo para confirmar que existe, pero no verifica que la ruta resuelta permanezca bajo la raíz del conjunto de archivos. Las operaciones públicas posteriores de FileSet, como copy(), write() y remove()+write(use_existing=True), usan esa ruta no verificada en operaciones de E/S de archivos. Esto permite la lectura/copia arbitraria de archivos y, en algunos flujos, mover/eliminar fuera de la raíz del conjunto de archivos. Este problema ha sido solucionado en la versión 3.0.2."
    }
  ],
  "lastModified": "2026-06-17T10:36:15.123",
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