Network error attempting to view default realm roles without permissions

[Jamstah]

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Area

admin/ui

Describe the bug

If a user has view-realm permission they can see the realm roles. If they go to realm roles and select the default-roles entry, they get a network error instead of a permissions error. After the error, the console is completely unresponsive and the window must be refreshed.

Network response was not OK.

Version

quay.io/keycloak/keycloak:latest

Regression

• The issue is a regression

Expected behavior

Permissions error should be shown

Actual behavior

Network error shown and admin console unresponsive.

How to Reproduce?

1. Create a realm
2. Create a user in the realm with view-realm permissions
3. Log in as that user
4. Go to Realm Roles
5. Attempt to view the default-roles- item

Anything else?

Same thing happens going to Realm Settings -> User registration with the same permissions.

[Jamstah]

This also happens in Realm Settings -> Events if the user doesn't have event permissions.

LMK If that needs to be a separate bug.