A vulnerability was found in Vercel Next.js up to 15.5.20/16.0.0-16.2.10. It has been classified as critical. This impacts the function rewrites/redirects. Performing a manipulation results in server-side request forgery.

This vulnerability is known as CVE-2026-64645. Remote exploitation of the attack is possible. No exploit is available.

Upgrading the affected component is recommended.