## Dynamic API routes returned 404 errors for some deployments

- 種別: status
- 関連技術: vercel
- 公開日時: 2026-08-14T13:08:12.000Z
- 情報源: Vercel Status (https://www.vercel-status.com/incidents/ysczd6rxyl7z)
- パーマリンク: https://vulnpulse.app/items/vercel-status-bb27560b3d25

Aug 14 , 13:08 UTC Resolved - This incident has been resolved. Between August 12, 17:12 UTC and August 13, 20:33 UTC, some Vercel deployments could return 404 errors from dynamic API routes. Deployments built on Vercel during this period were affected only if they met all three conditions: used Next.js 16.2 or earlier, used the Pages Router with internationalization (i18n configured in next.config.js), and used dynamic API routes, such as pages/api/[slug].ts or pages/api/[...path].ts. Deployments built outside Vercel (with vercel deploy --prebuilt) were not affected, and existing deployments…