CVE-2026-118426

Severity: medium (CVSS 5.3 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-29 · updated 2026-10-29
Weakness: CWE-862

Description

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 products

Octopus Deploy Octopus Server: from 3.0.0 before 2026.2.13487; from 2026.3.0 before 2026.3.15909 — fixed in 2026.2.13487, 2026.3.15909

How to fix

Upgrade to a fixed version: Octopus Deploy Octopus Server 2026.2.13487, 2026.3.15909. Check the vendor advisory for mitigations.

References

https://advisories.octopus.com/post/2026/sa2026-18

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