Vue version

3.5.17

Link to minimal reproduction

https://play.vuejs.org/#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

Steps to reproduce

Create a component with a generic (<script setup lang="ts" generic="T">).

Use the component and provide a prop that is not in the props list (e.g. a fallthrough attribute)

Notice that required props in the component is no longer required and typescript allows the usage without the prop.

What is expected?

Required props should be required and typescript should be aware of missing prop.

What is actually happening?

The way generic="" is altering defineProps is making required props optional.

System Info

Any additional comments?

No response