/cloudapi/1.0.0/securityTags/values API.Cloud Director 10.6.x
Cloud Director 10.5.x
This API is meant for organization users only (i.e. not system provider). If a system administrator runs the API it will fail by design.
For additional information see the Get Tags Values documentation.
To resolve this issue ensure you are logged into the API as an Organization user which has sufficient privileges to view Security Tags, such as an the Organization Administrator.