---
id: "CVE-2026-117466"
kind: "vulnerability"
aliases: ["CVE-2026-117466"]
title: "Octopus Server: System Manager role can escalate to full Administrator"
severity: "high"
cvss: 8.6
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["ci-cd", "octopus-deploy", "other", "self-hosted"]
not_affected_if: ["fixed-version", "no-system-manager-users"]
published_at: "2026-10-27T11:17:33+00:00"
first_seen_at: "2026-10-27T11:31:28+00:00"
updated_at: "2026-10-27T11:31:45+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-117466", "first_seen_at": "2026-10-27T11:31:28+00:00"}]
---

# Octopus Server: System Manager role can escalate to full Administrator

In affected versions of Octopus Server, a user with the System Manager role can raise their own privileges to full system Administrator. An attacker with a System Manager account gets administrator control of the deployment server.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Identify the installed Octopus Server version and compare it to the affected range in the NVD entry (unknown from the sources given)
- Review which users hold the System Manager role in Octopus Server settings

## Fix

- Upgrade Octopus Server to a version that fixes CVE-2026-117466 (the fixed version is unknown from the sources)
- Review users with the System Manager role and remove any that are not needed

## Timeline

- 2026-10-27T11:31:28+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-117466

## From the sources

In affected versions of Octopus Server, a user holding the System Manager role could escalate their privileges to full system Administrator.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_