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CVE-2024-51479

Estado: AnalizadaAlta (7.5)—

Next.js is a React framework for building full-stack web applications. In affected versions if a Next.js application is performing authorization in middleware based on pathname, it was possible for this authorization to be bypassed for pages directly under the application's root directory. For example: * [Not affected] `https://example.com/` * [Affected] `https://example.com/foo` * [Not affected] `https://example.com/foo/bar`. This issue is patched in Next.js `14.2.15` and later. If your Next.js application is hosted on Vercel, this vulnerability has been automatically mitigated, regardless of Next.js version. There are no official workarounds for this vulnerability.

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 a red sin autenticación (PR:N, UI:N) explotando lógica de autorización en middleware; permite eludir controles de acceso y obtener C:H (confidencialidad alta).

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 ManagementApplication Developer GuidanceActive Directory ConfigurationVulnerability ScanningUser TrainingUser Account Management

Tecnologías afectadas (1)

Vercel — Next.js

CWE

Referencias

JSON original (NVD)

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          "integrityImpact": "NONE",
          "userInteraction": "NONE",
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      "value": "Next.js is a React framework for building full-stack web applications. In affected versions if a Next.js application is performing authorization in middleware based on pathname, it was possible for this authorization to be bypassed for pages directly under the application's root directory. For example: * [Not affected] `https://example.com/` * [Affected] `https://example.com/foo` * [Not affected] `https://example.com/foo/bar`. This issue is patched in Next.js `14.2.15` and later. If your Next.js application is hosted on Vercel, this vulnerability has been automatically mitigated, regardless of Next.js version. There are no official workarounds for this vulnerability."
    },
    {
      "lang": "es",
      "value": "Next.js es un framework  de trabajo de React para crear aplicaciones web de pila completa. En las versiones afectadas, si una aplicación Next.js realiza una autorización en middleware basada en una ruta de acceso, era posible omitir esta autorización para las páginas que se encuentran directamente bajo el directorio raíz de la aplicación. Por ejemplo: * [No afectado] `https://example.com/` * [Afectado] `https://example.com/foo` * [No afectado] `https://example.com/foo/bar`. Este problema se solucionó en Next.js `14.2.15` y versiones posteriores. Si su aplicación Next.js está alojada en Vercel, esta vulnerabilidad se ha mitigado automáticamente, independientemente de la versión de Next.js. No existen workarounds oficiales para esta vulnerabilidad."
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  "lastModified": "2026-06-17T08:05:46.410",
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