CVE-2025-48947

Estado: AplazadaAlta (7.7)—

The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. In Auth0 Next.js SDK versions 4.0.1 through 4.6.0, `__session` cookies set by auth0.middleware may be cached by CDNs due to missing Cache-Control headers. Three preconditions must be met in order for someone to be affected by the vulnerability: Applications using the NextJS-Auth0 SDK, versions between 4.0.1 to 4.6.0, applications using CDN or edge caching that caches responses with the Set-Cookie header, and if the Cache-Control header is not properly set for sensitive responses. Users should upgrade auth0/nextjs-auth0 to v4.6.1 to receive a patch.

CVSS

Versión: 4.0
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Puntuación base: 7.7

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.43%
Percentil entre todas las CVEs puntuadas: 35
Fecha de la puntuación: 5/10/2026

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.

ExplotaciónT1203 Exploitation for Client Executionexecution75 %
Impacto principalT1539 Steal Web Session Cookiecredential access70 %
Impacto secundarioT1078 Valid Accountsstealth · persistence · privilege escalation · initial access65 %

UI:R (interacción del usuario) en vector CVSS indica T1203. El atacante obtiene cookies de sesión cacheadas en CDN (T1539: acceso a credenciales almacenadas) y reutiliza la sesión (T1078: valid accounts). Vulnerabilidad explícita en headers Cache-Control de respuestas sensibles.

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

User Training Multi-factor Authentication Update Software Application Developer Guidance Active Directory Configuration User Account Management

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Auth0 — Nextjs-auth0^AI

CWE

CWE-525

Referencias

https://github.com/auth0/nextjs-auth0/security/advisories/GHSA-f3fg-mf2q-fj3f

JSON original (NVD)

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          "options": [
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  "published": "2025-06-04T21:15:40.420",
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      "value": "The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. In Auth0 Next.js SDK versions 4.0.1 through 4.6.0, `__session` cookies set by auth0.middleware may be cached by CDNs due to missing Cache-Control headers. Three preconditions must be met in order for someone to be affected by the vulnerability: Applications using the NextJS-Auth0 SDK, versions between 4.0.1 to 4.6.0, applications using CDN or edge caching that caches responses with the Set-Cookie header, and if the Cache-Control header is not properly set for sensitive responses. Users should upgrade auth0/nextjs-auth0 to v4.6.1 to receive a patch."
    },
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      "value": "El SDK de Auth0 Next.js es una librería para implementar la autenticación de usuarios en aplicaciones Next.js. En las versiones 4.0.1 a 4.6.0 del SDK de Auth0 Next.js, las cookies `__session` establecidas por auth0.middleware podrían ser almacenadas en caché por las CDN debido a la falta de encabezados Cache-Control. Se deben cumplir tres requisitos para que una persona se vea afectada por la vulnerabilidad: aplicaciones que utilizan el SDK de NextJS-Auth0 (versiones entre la 4.0.1 y la 4.6.0), aplicaciones que utilizan CDN o caché perimetral que almacena en caché las respuestas con el encabezado Set-Cookie, y si el encabezado Cache-Control no está configurado correctamente para respuestas sensibles. Los usuarios deben actualizar auth0/nextjs-auth0 a la versión 4.6.1 para recibir un parche."
    }
  ],
  "lastModified": "2026-06-17T09:30:32.030",
  "sourceIdentifier": "security-advisories@github.com"
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