Spring Authorization Server configures a Pushed Authorization Request endpoint by default at /oauth2/par.
Spring Boot provides properties for all the other endpoints via spring.security.oauth2.authorizationserver.endpoint.*-uri but not this one.
Comment From: wilkinsona
It looks like this was a new endpoint added in 1.5 that was overlooked as part of the upgrade in Boot 3.5. I think we could consider this as a bug of omission and add a property in a maintenance release but I'd like to double-check with the rest of the team.