cvedb.io
CVE-2025-64762
CRITICAL · CVSS 9.1
EPSS exploitation probability: 0%
Published 2025-11-21T02:15:44.077 · Last modified 2026-06-17T09:55:10.130

Summary

The AuthKit library for Next.js provides convenient helpers for authentication and session management using WorkOS & AuthKit with Next.js. In authkit-nextjs version 2.11.0 and below, authenticated responses do not defensively apply anti-caching headers. In environments where CDN caching is enabled, this can result in session tokens being included in cached responses and subsequently served to multiple users. Next.js applications deployed on Vercel are unaffected unless they manually enable CDN caching by setting cache headers on authenticated paths. Patched in authkit-nextjs 2.11.1, which applies anti-caching headers to all responses behind authentication.

Affected products

workos — authkit-nextjs

Does this affect you?

Add your gear to cvedb and we'll alert you only when workos ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.