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CVE-2026-54052

Estado: AnalizadaCrítica (9.9)—

n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. Prior to 2.56.1, in HTTP mode with multi-tenancy enabled through ENABLE_MULTI_TENANT=true, n8n-mcp's local workflow version history backups were not isolated per tenant, allowing an authenticated tenant to read workflow version snapshots belonging to other tenants and delete or destroy other tenants' stored backups, including full node definitions, credential references, and authorization headers. This issue is fixed in version 2.56.1.

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.

Autenticado en red adyacente (PR:L, AV:N) explota falta de aislamiento de datos entre inquilinos. Lee snapshots de flujos ajenos (T1005), manipula/destruye backups (T1565.001) e impacta disponibilidad de otros (T1531).

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 ScanningThreat Intelligence ProgramRestrict File and Directory PermissionsPrivileged Account ManagementRemote Data StorageNetwork Segmentation

Tecnologías afectadas (1)

N8n-mcp — N8n-mcp

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-54052",
  "cveTags": [],
  "metrics": {
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          "options": [
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        "Vendor Advisory"
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  "vulnStatus": "Analyzed",
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  ],
  "lastModified": "2026-07-18T03:16:37.000",
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