« Volver al listado

CVE-2025-61917

Estado: AnalizadaAlta (7.7)—

n8n is an open source workflow automation platform. From version 1.65.0 to before 1.114.3, the use of Buffer.allocUnsafe() and Buffer.allocUnsafeSlow() in the task runner allowed untrusted code to allocate uninitialized memory. Such uninitialized buffers could contain residual data from within the same Node.js process (for example, data from prior requests, tasks, secrets, or tokens), resulting in potential information disclosure. This issue has been patched in version 1.114.3.

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.

AV:N/PR:L sin UI indica explotación remota con privilegios; Buffer.allocUnsafe() expone datos residuales del proceso (secretos, tokens, datos previos) → T1005 y T1552.

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

Privileged Account ManagementUpdate SoftwareActive Directory ConfigurationVulnerability ScanningUser TrainingThreat Intelligence Program

Tecnologías afectadas (1)

N8N — N8N

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-61917",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-61917",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-02-05T14:20:24.291895Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 7.7,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4,
        "exploitabilityScore": 3.1
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "n8n-io",
          "product": "n8n",
          "versions": [
            {
              "status": "affected",
              "version": ">= 1.65.0, < 1.114.3"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-02-04T17:16:08.820",
  "references": [
    {
      "url": "https://github.com/n8n-io/n8n/commit/2c4c2953199733c791f739a40879ae31ca129aba",
      "tags": [
        "Patch"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-49mx-fj45-q3p6",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        },
        {
          "lang": "en",
          "value": "CWE-668"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "n8n is an open source workflow automation platform. From version 1.65.0 to before 1.114.3, the use of Buffer.allocUnsafe() and Buffer.allocUnsafeSlow() in the task runner allowed untrusted code to allocate uninitialized memory. Such uninitialized buffers could contain residual data from within the same Node.js process (for example, data from prior requests, tasks, secrets, or tokens), resulting in potential information disclosure. This issue has been patched in version 1.114.3."
    },
    {
      "lang": "es",
      "value": "n8n es una plataforma de automatización de flujos de trabajo de código abierto. Desde la versión 1.65.0 hasta antes de la 1.114.3, el uso de Buffer.allocUnsafe() y Buffer.allocUnsafeSlow() en el ejecutor de tareas permitió que código no confiable asignara memoria no inicializada. Dichos búferes no inicializados podrían contener datos residuales del mismo proceso de Node.js (por ejemplo, datos de solicitudes anteriores, tareas, secretos o tokens), lo que resultaría en una potencial revelación de información. Este problema ha sido parcheado en la versión 1.114.3."
    }
  ],
  "lastModified": "2026-06-17T09:51:04.397",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AFE146F2-5735-43C4-A7D2-8D3ACA1E522F",
              "versionEndExcluding": "1.114.3",
              "versionStartIncluding": "1.65.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security-advisories@github.com"
}