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OpenAdvisories
High · 8.0 CVE-2025-64762 EUVD-2025-198354GHSA-p8pf-44ff-93gf

authkit-nextjs may let session cookies be cached in CDNs

Published Nov 21, 2025 · Updated Nov 24, 2025 · Assigned by GitHub_M

Description

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

VendorProductAffectedFixed
workos authkit-nextjs < 2.11.1 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm @workos-inc/authkit-nextjs < 2.11.1 2.11.1 GHSA-p8pf-44ff-93gf

References