CVE-2025-48947 Information

Description

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.

Reference

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