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.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| next(npm) | 12.0.0 | 12.0.5 | N/A |
| next(npm) | 0.9.9 | 11.1.3 | N/A |
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