CVE-2025-27553

Estado: ModificadaAlta (7.5)—

Relative Path Traversal vulnerability in Apache Commons VFS before 2.10.0.

The FileObject API in Commons VFS has a 'resolveFile' method that takes a 'scope' parameter. Specifying 'NameScope.DESCENDENT' promises that "an exception is thrown if the resolved file is not a descendent of the base file". However, when the path contains encoded ".." characters (for example, "%2E%2E/bar.txt"), it might return file objects that are not a descendent of the base file, without throwing an exception. This issue affects Apache Commons VFS: before 2.10.0.

Users are recommended to upgrade to version 2.10.0, which fixes the issue.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Puntuación base: 7.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 1.40%
Percentil entre todas las CVEs puntuadas: 72
Fecha de la puntuación: 6/10/2026

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.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access85 %
Impacto principalT1005 Data from Local Systemcollection90 %

Acceso de red sin autenticación (AV:N/PR:N/UI:N) a API de aplicación expuesta; path traversal con encoding permite lectura de archivos fuera del scope permitido.

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 Privileged Account Management Network Segmentation Limit Access to Resource Over Network Filter Network Traffic Application Isolation and Sandboxing

Tecnologías afectadas (1)

Apache — Commons VFS

CWE

CWE-23

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2025-27553",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-27553",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-03-24T13:43:35.551341Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@apache.org",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Commons VFS",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "2.10.0",
              "versionType": "semver"
            }
          ],
          "packageName": "org.apache.commons:commons-vfs2",
          "collectionURL": "https://repo.maven.apache.org/maven2",
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2025-03-23T15:15:13.377",
  "references": [
    {
      "url": "https://lists.apache.org/thread/cnzqowyw9r2pl263cylmxhnvh41hyjcb",
      "tags": [
        "Mailing List",
        "Vendor Advisory"
      ],
      "source": "security@apache.org"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2025/03/23/1",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2025/04/msg00006.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@apache.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-23"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Relative Path Traversal vulnerability in Apache Commons VFS before 2.10.0.\n\nThe FileObject API in Commons VFS has a 'resolveFile' method that\ntakes a 'scope' parameter. Specifying 'NameScope.DESCENDENT' promises that \"an exception is thrown if the resolved file is not a descendent of\nthe base file\". However, when the path contains encoded \"..\"\ncharacters (for example, \"%2E%2E/bar.txt\"), it might return file objects that are not\na descendent of the base file, without throwing an exception.\nThis issue affects Apache Commons VFS: before 2.10.0.\n\nUsers are recommended to upgrade to version 2.10.0, which fixes the issue."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de Path Traversal relativo en Apache Commons VFS anterior a la versión 2.10.0. La API FileObject de Commons VFS incluye un método \"resolveFile\" que utiliza el parámetro \"scope\". Especificar \"NameScope.DESCENDENT\" implica que se lanzará una excepción si el archivo resuelto no es descendiente del archivo base. Sin embargo, si la ruta contiene caracteres \"..\" codificados (por ejemplo, \"%2E%2E/bar.txt\"), podría devolver objetos de archivo que no son descendientes del archivo base, sin lanzar una excepción. Este problema afecta a Apache Commons VFS anterior a la versión 2.10.0. Se recomienda actualizar a la versión 2.10.0, que soluciona el problema."
    }
  ],
  "lastModified": "2026-06-17T09:03:47.477",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:commons_vfs:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4BABF8CF-5800-484E-9B46-701503CA903B",
              "versionEndExcluding": "2.10.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@apache.org"
}