In affected versions of Octopus Deploy where customers are using Active Directory for authentication it was possible for an unauthenticated user to make an API request against two endpoints which would retrieve some data from the associated Active Directory. The requests when crafted correctly would return specific information from user profiles (Email address/UPN and Display name) from one endpoint and group information ( Group ID and Display name) from the other. This vulnerability does not expose data within the Octopus Server product itself.
CVE ID: CVE-2025-0589
CVSS Base Severity: MEDIUM
CVSS Base Score: 6.9
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
Vendor: Octopus Deploy
Product: Octopus Server
EPSS Score: 0.04% (probability of being exploited)
EPSS Percentile: 11.94% (scored less or equal to compared to others)
EPSS Date: 2025-03-12 (when was this score calculated)