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CVE-2026-32729

Estado: AnalizadaAlta (8.8)—

Runtipi is a personal homeserver orchestrator. Prior to 4.8.1, The Runtipi /api/auth/verify-totp endpoint does not enforce any rate limiting, attempt counting, or account lockout mechanism. An attacker who has obtained a user's valid credentials (via phishing, credential stuffing, or data breach) can brute-force the 6-digit TOTP code to completely bypass two-factor authentication. The TOTP verification session persists for 24 hours (default cache TTL), providing an excessive window during which the full 1,000,000-code keyspace (000000–999999) can be exhausted. At practical request rates (~500 req/s), the attack completes in approximately 33 minutes in the worst case. This vulnerability is fixed in 4.8.1.

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.

Vector CVSS indica acceso remoto (AV:N) con privilegios requeridos (PR:L), justificando T1210. El atacante con credenciales válidas explota la ausencia de rate limiting en /api/auth/verify-totp para fuerza bruta del código TOTP (CWE-307), logrando acceso no autorizado con autenticación multifactor c

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

Application Developer GuidanceVulnerability ScanningThreat Intelligence ProgramRestrict Web-Based ContentPrivileged Account ManagementPassword Policies

Tecnologías afectadas (1)

Runtipi — Runtipi

CWE

Referencias

JSON original (NVD)

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      "value": "Runtipi is a personal homeserver orchestrator. Prior to 4.8.1, The Runtipi /api/auth/verify-totp endpoint does not enforce any rate limiting, attempt counting, or account lockout mechanism. An attacker who has obtained a user's valid credentials (via phishing, credential stuffing, or data breach) can brute-force the 6-digit TOTP code to completely bypass two-factor authentication. The TOTP verification session persists for 24 hours (default cache TTL), providing an excessive window during which the full 1,000,000-code keyspace (000000–999999) can be exhausted. At practical request rates (~500 req/s), the attack completes in approximately 33 minutes in the worst case. This vulnerability is fixed in 4.8.1."
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      "value": "Runtipi es un orquestador de homeserver personal. Antes de 4.8.1, el endpoint /api/auth/verify-totp de Runtipi no aplica ningún mecanismo de limitación de velocidad, conteo de intentos o bloqueo de cuenta. Un atacante que ha obtenido credenciales válidas de un usuario (mediante phishing, relleno de credenciales o violación de datos) puede forzar por fuerza bruta el código TOTP de 6 dígitos para eludir completamente la autenticación de dos factores. La sesión de verificación TOTP persiste durante 24 horas (TTL de caché predeterminado), proporcionando una ventana excesiva durante la cual el espacio de claves completo de 1.000.000 códigos (000000–999999) puede ser agotado. A tasas de solicitud prácticas (~500 solicitudes/s), el ataque se completa en aproximadamente 33 minutos en el peor de los casos. Esta vulnerabilidad está corregida en 4.8.1."
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  "lastModified": "2026-06-17T10:36:17.063",
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