Vulnerable version of Next.js detected, please update immediately

I tried to publish on Vercel but it failed with a warning:

“Error: Vulnerable version of Next.js detected, please update immediately. Learn More: https://vercel.link/CVE-2025-66478”

I also heard there’s a severe Next.js vulnerability recently, and everyone needs to upgrade to fix it.

This vulnerability allows remote code execution through React Server Components (RSC), so it's important to update as soon as possible.

I saw a few posts on another forum the other day where people mentioned their servers had been hacked because of this vulnerability, and the attackers were using them to mine cryptocurrency.