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CVE-2026-21893

Estado: AnalizadaCrítica (9.4)—

n8n is an open source workflow automation platform. From version 0.187.0 to before 1.120.3, a command injection vulnerability was identified in n8n’s community package installation functionality. The issue allowed authenticated users with administrative permissions to execute arbitrary system commands on the n8n host under specific conditions. This issue has been patched in version 1.120.3.

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.

Acceso remoto con privilegios administrativos (PR:H) permite inyección de comandos en la funcionalidad de instalación de paquetes (CWE-78), ejecutando código arbitrario en el servidor n8n.

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 ManagementDisable or Remove Feature or ProgramVulnerability ScanningThreat Intelligence ProgramRestrict Web-Based ContentNetwork Segmentation

Tecnologías afectadas (1)

N8N — N8N

CWE

Referencias

JSON original (NVD)

Mostrar
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          "role": "CISA Coordinator",
          "options": [
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          "version": "2.0.3",
          "timestamp": "2026-02-04T19:33:16.360319Z"
        }
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          "Recovery": "NOT_DEFINED",
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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  "published": "2026-02-04T18:16:08.410",
  "references": [
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      "url": "https://github.com/n8n-io/n8n/commit/ae0669a736cc496beeb296e115267862727ae838",
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      "tags": [
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  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "source": "security-advisories@github.com",
      "description": [
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          "lang": "en",
          "value": "CWE-20"
        },
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        }
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    }
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    },
    {
      "lang": "es",
      "value": "n8n es una plataforma de automatización de flujos de trabajo de código abierto. Desde la versión 0.187.0 hasta antes de la 1.120.3, se identificó una vulnerabilidad de inyección de comandos en la funcionalidad de instalación de paquetes de la comunidad de n8n. El problema permitía a usuarios autenticados con permisos administrativos ejecutar comandos de sistema arbitrarios en el host de n8n bajo condiciones específicas. Este problema ha sido parcheado en la versión 1.120.3."
    }
  ],
  "lastModified": "2026-06-17T10:19:06.217",
  "configurations": [
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          "operator": "OR"
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}