CVE-2026-118426 - Vulnerability Details - OpenCVE

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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Octopus Deploy

Octopus Server

unaffected

Version	Status	Constraints
`3.0.0`	affected	< 2026.2.13487
`2026.3.0`	affected	< 2026.3.15909

No data.

No data.

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No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

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

History

Thu, 29 Oct 2026 05:15:00 +0000

Type	Values Removed	Values Added
Title		Authenticated LDAP Search Disclosure in Octopus Server

Thu, 29 Oct 2026 02:30:00 +0000

Type	Values Removed	Values Added
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.
Weaknesses		CWE-862
References		https://advisories.octopus.com/post/2026/sa2026-18
Metrics		cvssV4_0 `{'score': 5.3, 'vector': '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'}`

Projects

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MITRE

Status: PUBLISHED

Assigner: Octopus

Published: 2026-10-29T02:02:13.443Z

Updated: 2026-10-29T02:02:13.443Z

Reserved: 2026-10-28T05:50:49.880Z

Link: CVE-2026-118426

Vulnrichment

No data.

NVD

Status : Received

Published: 2026-10-29T04:18:35.260

Modified: 2026-10-29T04:18:35.260

Link: CVE-2026-118426

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-10-29T05:00:15Z

Weaknesses

CWE-862

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