CVE-2025-48947

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.

Is your site exposed to CVE-2025-48947?

Run a free security scan — no signup, results in seconds.

Weakness Type (CWE)

CWE-525 CWE-525

References

Other References

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

Frequently Asked Questions

What is CVE-2025-48947? +

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.

How do I check if I'm vulnerable to CVE-2025-48947? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-118571

Use of Web Browser Cache Containing Sensitive Information vulnerability in Drupal Media Alias Display allows Exploiting Incorrectly Configured Access Control …

CVE-2026-114548

Use of Web Browser Cache Containing Sensitive Information vulnerability in Drupal ImageAPI Optimize WebP allows Exploiting Incorrectly Configured Access Control …

CVE-2026-114546

Use of Web Browser Cache Containing Sensitive Information vulnerability in Drupal Media Alias Display allows Exploiting Incorrectly Configured Access Control …

CVE-2026-118550

Use of Web Browser Cache Containing Sensitive Information vulnerability in Drupal AI (Artificial Intelligence) allows Exploiting Incorrectly Configured Access Control …

CVE-2026-114542

Use of Web Browser Cache Containing Sensitive Information vulnerability in Drupal Simple OAuth (OAuth2) & OpenID Connect allows Exploiting Incorrectly …

CVE-2026-13697 7.4

undici's cache interceptor mishandles malformed Cache-Control private directives. In undici 7.0.0 up to before 7.29.0 and 8.0.0 up to before …