In affected versions of Octopus Server it is possible to reveal information about teams via the API due to an Insecure Direct Object Reference (IDOR) vulnerability
In affected versions of Octopus Server it is possible to reveal the existence of resources in a space that the user does not have access to due to verbose error messaging.
In affected versions of Octopus Deploy it is possible to reveal the Space ID of spaces that the user does not have access to view in an error message when a resource is part of another Space.