CVE-2026-44574
Full vulnerability record from the local CVENow database.
Description
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.
Severity
HIGH
CVSS score
8.1
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-05-13 17:16:22.767000
Last modified
2026-10-26 17:10:03.270000
View original CVE JSON
{
"id": "CVE-2026-44574",
"sourceIdentifier": "[email protected]",
"published": "2026-05-13T17:16:22.767",
"lastModified": "2026-10-26T17:10:03.270",
"vulnStatus": "Modified",
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"value": "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."
},
{
"lang": "es",
"value": "Next.js es un framework de React para construir aplicaciones web full-stack. Desde la 15.4.0 hasta antes de la 15.5.16 y la 16.2.5, las aplicaciones que dependen de middleware para proteger rutas dinámicas pueden ser vulnerables a un bypass de autorización. En despliegues afectados, parámetros de consulta especialmente diseñados pueden alterar el valor de la ruta dinámica visto por la página mientras dejan la ruta visible sin cambios, lo que puede permitir que el contenido protegido se renderice sin pasar la verificación de middleware esperada. Esta vulnerabilidad está corregida en las versiones 15.5.16 y 16.2.5."
}
],
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