CVE-2026-12701

Estado: Pendiente de análisisCrítica (9)—

A path traversal vulnerability was found in pulpcore. The relative_path_validator function only verifies that content paths do not begin with "/" but fails to block directory traversal sequences such as "../" anywhere in the path. An authenticated administrator can craft a relative_path containing embedded traversal sequences (e.g., "looking/normal/../../../../etc/shadow") that escapes the intended export directory during FilesystemExport operations. Because the file content is also user-controlled (uploaded artifact), this allows arbitrary file write to any location writable by the Pulp service user, potentially leading to service compromise or further system exploitation.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:H
Puntuación base: 9

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 1.19%
Percentil entre todas las CVEs puntuadas: 67
Fecha de la puntuación: 5/10/2026

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.

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement85 %
Impacto principalT1565.001 Stored Data Manipulationimpact90 %

AV:N con PR:H indica servicio remoto que requiere privilegios; path traversal permite escribir archivos arbitrarios (I:H) en el sistema de archivos, combinado con acceso a datos (CWE-22 + descripción explícita de lectura/escritura).

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

Vulnerability Scanning Threat Intelligence Program Restrict File and Directory Permissions Privileged Account Management Remote Data Storage Network Segmentation

Tecnologías afectadas (1)

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

Pulpcore — Pulpcore^AI

CWE

CWE-22

Referencias

JSON original (NVD)

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  "published": "2026-07-20T15:16:34.333",
  "references": [
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:42078",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:42079",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2026:42082",
      "source": "secalert@redhat.com"
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    {
      "url": "https://access.redhat.com/errata/RHSA-2026:42132",
      "source": "secalert@redhat.com"
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      "source": "secalert@redhat.com"
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      "source": "secalert@redhat.com"
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      "source": "secalert@redhat.com"
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    {
      "url": "https://access.redhat.com/security/cve/CVE-2026-12701",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2490703",
      "source": "secalert@redhat.com"
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  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secalert@redhat.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A path traversal vulnerability was found in pulpcore. The relative_path_validator function only verifies that content paths do not begin with \"/\" but fails to block directory traversal sequences such as \"../\" anywhere in the path. An authenticated administrator can craft a relative_path containing embedded traversal sequences (e.g., \"looking/normal/../../../../etc/shadow\") that escapes the intended export directory during FilesystemExport operations. Because the file content is also user-controlled (uploaded artifact), this allows arbitrary file write to any location writable by the Pulp service user, potentially leading to service compromise or further system exploitation."
    }
  ],
  "lastModified": "2026-07-22T19:16:54.333",
  "sourceIdentifier": "secalert@redhat.com"
}