CVE-2025-64762
Critical · 9.1authkit-nextjs may let session cookies be cached in CDNs
CVSS
9.1
EPSS
0.4%
Published
Nov 20, 2025
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | @workos-inc/authkit-nextjs | 0 | 2.11.1 |
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