---
id: CVE-2026-118426
title: >-
  In affected versions of Octopus Server with the LDAP authentication provider
  enabled, any authenticated user could call the LDAP user search and LDAP group
  search.
summary: >-
  In affected versions of Octopus Server with the LDAP authentication provider
  enabled, any authenticated user could call the LDAP user search and LDAP group
  search.
severity: medium
cvss: 5.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-862
vendor: Octopus Deploy
product: Octopus Server
affected:
  - octopus_server >= 3.0.0 < 2026.2.13487
  - octopus_server >= 2026.3.0 < 2026.3.15909
published: '2026-10-29'
updated: '2026-10-29'
sourceUpdated: '2026-10-29T02:02:13.443Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-118426'
references:
  - url: 'https://advisories.octopus.com/post/2026/sa2026-18'
tags:
  - cve.org
epss: 0.00268
epssPercentile: 0.19035
ingestedAt: '2026-10-31T01:14:13.030Z'
---

## Overview

In affected versions of Octopus Server with the LDAP authentication provider enabled, any authenticated user could call the LDAP user search and LDAP group search.

## Affected

- `octopus_server >= 3.0.0 < 2026.2.13487`
- `octopus_server >= 2026.3.0 < 2026.3.15909`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.