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CVE-2026-59208

Estado: AnalizadaAlta (7.6)—

n8n is an open source workflow automation platform. Prior to 2.27.4 and from 2.28.0 prior to 2.28.1, n8n instances configured with more than one trusted token-exchange issuer resolved external identities to local accounts using only the JWT sub claim and ignored the iss claim, allowing an attacker with a valid token from one trusted issuer and a sub matching a victim under another issuer to authenticate as that victim. This issue is fixed in versions 2.27.4 and 2.28.1.

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.

Acceso remoto autenticado a n8n explotando validación deficiente de JWT (CWE-287, CWE-346); atacante con token válido de un emisor de confianza se autentica como otro usuario ignorando el claim 'iss'. Requiere privilegios previos (PR:L) y acceso a red. Permite suplantación de identidad y acceso no a

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 ManagementUser Account ManagementNetwork SegmentationMulti-factor AuthenticationDisable or Remove Feature or ProgramApplication Developer Guidance

Tecnologías afectadas (1)

N8N — N8N

CWE

Referencias

JSON original (NVD)

Mostrar
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    }
  ],
  "lastModified": "2026-07-14T01:16:18.827",
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