Octopus before 3.17.7 allows attackers to obtain sensitive cleartext information by reading a variable JSON file in certain situations involving Offline Drop Targets.

In Octopus before 3.17.7, an authenticated user who was explicitly granted the permission to invite new users (aka UserInvite) can invite users to teams with escalated privileges.

An issue was discovered in Octopus before 3.17.7. When the special Guest user account is granted the CertificateExportPrivateKey permission, and Guest Access is enabled for the Octopus Server, an attacker can sign in as the Guest account and export Certificates managed by Octopus, including the private key.