CVE-2026-55632Network attack vector

Authenticated user enumeration via missing administrator check

Published Sep 23, 2026 · Updated Sep 23, 2026

Incorrect authorization in Thoughtworks GoCD 20.2.0 through 25.4.0 allows remote authenticated users to enumerate users and roles. The internal pipeline structure controller returned all usernames and role names without checking for a pipeline-group or template administrator. Any regular account can obtain configured usernames and available role names, but not role assignments or data-modification access.

CVSS severity4.3
Medium
EPSS probability0.29%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Thoughtworks GoCD 20.2.0 through 25.4.0 allows remote authenticated users to enumerate users and roles. The internal pipeline structure controller returned all usernames and role names without checking for a pipeline-group or template administrator. Any regular account can obtain configured usernames and available role names, but not role assignments or data-modification access.

The record

CVE
CVE-2026-55632
Published
Sep 23, 2026
Updated
Sep 23, 2026
Vendor
Thoughtworks
Product
GoCD
Classifications
CWE-863, T1087, T1069
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 23, 2026Record 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=>= 20.2.0, < 26.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Thoughtworks · GoCDversion=>= 20.2.0, < 26.1.0

Published CVSS scores

4.3GoCDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1087Account Discovery
T1069Permission Groups Discovery

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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