CVE-2025-0589Network attack vector

Active Directory disclosure via unauthenticated API endpoints

Published Feb 11, 2025 · Updated Feb 11, 2025

Incorrect authorization in affected Octopus Server releases allows remote attackers to read Active Directory data through two API endpoints. When Active Directory authentication is enabled, the endpoints process unauthenticated crafted requests and return email addresses or UPNs, user display names, group IDs, and group display names. Octopus Server data is not exposed, and the consequence is limited to directory profile and group information.

CVSS severity6.9
Medium
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in affected Octopus Server releases allows remote attackers to read Active Directory data through two API endpoints. When Active Directory authentication is enabled, the endpoints process unauthenticated crafted requests and return email addresses or UPNs, user display names, group IDs, and group display names. Octopus Server data is not exposed, and the consequence is limited to directory profile and group information.

The record

CVE
CVE-2025-0589
Published
Feb 11, 2025
Updated
Feb 11, 2025
Vendor
Octopus Deploy
Product
Octopus Server
Classifications
CWE-648, T1087.002, T1069.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 11, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2020.3.3 <2024.3.13071
  2. Affected versionversion=2024.4.401 <2024.4.7065

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Octopus Deploy · Octopus Serverversion=2020.3.3 <2024.3.13071; version=2024.4.401 <2024.4.7065

Published CVSS scores

6.9Octopus DeployCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
5.3NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.0NIST National Vulnerability DatabaseAV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-648Incorrect Use of Privileged APIs
T1087.002Domain Account
T1069.002Domain Groups

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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