owasp-string-limit

String size should be limited to mitigate resource exhaustion attacks. This can be done using maxLength, enum or const.

Bad example

openapi: "3.1.0"
info:
  version: "1.0"
components:
  schemas:
    Foo:
      type: string

Good Example

openapi: "3.1.0"
info:
  version: "1.0"
components:
  schemas:
    Foo:
      type: string
      maxLength: 99

How do I fix this violation?

Use maxLength, enum, or const to define the size/limit of the value.