getPatternList error with read-only users in a particular tenant

[asteriscos]

Wazuh	Rev	Browser
4.9.0	xyzw	Chrome, Firefox, Safari, etc

Description
Some requests to the endpoint api/saved_objects/_find?type=index-pattern&fields=title&fields=fields&per_page=9999 fail with the error:

no permissions for [indices:data/read/search] and User [name=testuser, backend_roles=[], requestedTenant=null]: security_exception: [security_exception] Reason: no permissions for [indices:data/read/search] and User [name=testuser, backend_roles=[], requestedTenant=null]

This happens to users that have read-only permissions to a specific tenant, like in the following configuration:

Details

In opensearch_dashboards.yml enable multi-tenancy:

opensearch_security.multitenancy.enabled: true

Create a new read-only user with permissions in a particular tenant

Load a dashboard (or any view with visualizations) and check the browser dev-tools for security exceptions: