CVE-2026-0704: Octopus Server

Critical severity, CVSS 9.1. EPSS: 0.3% chance of exploitation in the next 30 days.

In affected version of Octopus Deploy it was possible to remove files and/or contents of files on the host using an API endpoint. The field lacked validation which could potentially result in ways to circumvent expected workflows.

Affected products

• Octopus Octopus Server: from 2023.1.4189, before 2025.3.14715 (fixed in 2025.3.14715)

Published 2026-02-25. Last modified 2026-06-17.