# CVE-2026-124627: Octopus Server LDAP identity injection leading to privilege escalation

Source: https://junglewise.ai/threats/cve-2026-124627-in-affected-versions-of-octopus-server-incorrect-validation-of  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-12. Updated: 2026-11-12  
License: CC BY 4.0 with a link back

CVE-2026-124627 · Severity: info · Published 2026-11-12

Octopus Server is a deployment automation platform that manages releases and permissions across environments. This vulnerability allows an attacker to register a new user account and receive the team memberships and permissions of another user through LDAP authentication misconfiguration. Affected organizations using LDAP groups mapped to Octopus teams could see unauthorized privilege escalation and access to sensitive deployment controls.

Technologies: [Octopus Deploy Octopus Server](https://junglewise.ai/threats/technologies/octopus-server). Vendors: [Octopus Deploy](https://junglewise.ai/threats/vendors/octopus-deploy).

## Quick answers

**Is CVE-2026-124627 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-124627 being exploited in the wild.

**How severe is CVE-2026-124627?** Informational severity, published 12 November 2026.

**Which products and versions are affected?** Octopus Deploy Octopus Server All 3.x, 4.x, 2018.x–2026.1.x, 2026.2.x before 2026.2.13526, 2026.3.x before 2026.3.15926.

**Is there a fix for CVE-2026-124627?** Yes: fixed in Octopus Server 2026.2.13526, 2026.3.15926 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-124627 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-124627?** Check whether you run Octopus Deploy Octopus Server at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in Octopus Server 2026.2.13526, 2026.3.15926 or later

## Technical details

An LDAP identity injection flaw in Octopus Server fails to properly validate the external identity associated with newly registered users, allowing an attacker to spoof LDAP group membership during account creation. The vulnerability requires LDAP authentication to be enabled and LDAP groups to be mapped to Octopus teams; exploitation grants the attacker arbitrary team memberships and associated permissions without authentication bypass. Fixes are available in versions 2026.2.13526, 2026.3.15926, and later.

## Affected products

- Octopus Deploy Octopus Server All 3.x, 4.x, 2018.x–2026.1.x, 2026.2.x before 2026.2.13526, 2026.3.x before 2026.3.15926

## Timeline

- 2026-08-28: disclosed: Discovery date
- 2026-10-12: patched: Patch release date
- 2026-11-12: advisory: Advisory release date

## References

- [https://advisories.octopus.com/post/2026/sa2026-23](https://advisories.octopus.com/post/2026/sa2026-23)

## Related threats

- [Octopus Server authorization bypass in LDAP identity editing](https://junglewise.ai/threats/cve-2026-124628-in-affected-versions-of-octopus-server-incorrect-validation-of)
- [Octopus Server OIDC claim validation bypass](https://junglewise.ai/threats/cve-2026-116835-in-affected-versions-of-octopus-server-insufficient-validation)
- [Octopus Server incorrect authorization in project triggers](https://junglewise.ai/threats/cve-2026-93487-in-affected-versions-of-octopus-server-incorrect-validation-of)
- [Octopus Server privilege escalation in LDAP login editing](https://junglewise.ai/threats/cve-2026-105948-in-affected-versions-of-octopus-server-incorrect-validation-of)
- [Octopus Server authentication cookie forgery leading to privilege escalation](https://junglewise.ai/threats/cve-2026-96414-in-affected-versions-of-octopus-server-insufficient-integrity)