Gateway authentication problem: version 3 (all user/password are accepted)

[RG1875]

Hello,

I work in an API service, web service finally API management.
In my start-up, we want to set up an API management solution and preferably Open Source.
We have knowledge in API management.
We looked at the solutions available on the market and we were interested in APIMAN.
Therefore, we made a POC (Proof of Concept) by installing version 2.
Then as version 3.1.2.Final was released, we decided to test it and deploy it. We took vert.x gateways.
But we encounter a problem on the gateway side with the authentication part on this version 3 that we did not encounter with version 2.
In a few words, what we found is that we are trying the gateway; it accepts all logins/passwords. It does not take into account the login/password configured in the Keycloack: this is not really acceptable on the security side.

Below are some screenshots of our configuration:

Thanks for your help,

[RG1875]

Hello,
To clarify things, we are using version 20 of Keycloack with version 3 on the APIMAN side.