Next.js is a React framework. In versions of Next.js prior to 12.0.5 or 11.1.3, invalid or malformed URLs could lead to a server crash. In order to be affected by this issue, the deployment must use Next.js versions above 11.1.0 and below 12.0.5, Node.js above 15.0.0, and next start or a custom server. Deployments on Vercel are not affected, along with similar environments where invalid requests are filtered before reaching Next.js. Versions 12.0.5 and 11.1.3 contain patches for this issue.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Next.js | Vercel | 11.1.0 (including) | 11.1.3 (excluding) |
| Next.js | Vercel | 12.0.0 (including) | 12.0.5 (excluding) |