CVE-2026-44574highCWE-288CWE-551

CVE-2026-44574: fallo de gravedad alta en vercel next.js

Next.js: Middleware / Proxy bypass through dynamic route parameter injection

Publicada el · Actualizada el

Seguir esta CVE+ Monitorear next.js+ Monitorear next

Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.

21Vexday Risk Score

Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.

ssvc Trackcvss 8.1epss 0.6%
Next.js is a React framework for building full-stack web applications. From 15.4.0 to before 15.5.16 and 16.2.5, applications that rely on middleware to protect dynamic routes can be vulnerable to authorization bypass. In affected deployments, specially crafted query parameters can alter the dynamic route value seen by the page while leaving the visible path unchanged, which can allow protected content to be rendered without passing the expected middleware check. This vulnerability is fixed in 15.5.16 and 16.2.5.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Productos afectados
vercel · next.js
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