CVE-2026-55625Network attack vectorHinoki check available

Credential exposure via unchecked material test context

Published Sep 21, 2026 · Updated Sep 21, 2026

Authorization bypass in Thoughtworks GoCD 16.1.0 through 25.4.0 allows remote authenticated users to expose source-control credentials. The material connection test APIs accept an arbitrary existing pipeline and group context without verifying that the caller administers that context. Pipeline group administrator access is required; affected 20.6.0 and later deployments can also resolve protected external secrets.

CVSS severity4.9
Medium
EPSS probability0.59%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Authorization bypass in Thoughtworks GoCD 16.1.0 through 25.4.0 allows remote authenticated users to expose source-control credentials. The material connection test APIs accept an arbitrary existing pipeline and group context without verifying that the caller administers that context. Pipeline group administrator access is required; affected 20.6.0 and later deployments can also resolve protected external secrets.

The record

CVE
CVE-2026-55625
Published
Sep 21, 2026
Updated
Sep 21, 2026
Vendor
Thoughtworks
Product
GoCD
Classifications
CWE-639, CWE-863, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 21, 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=>= 16.1.0, < 26.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Thoughtworks · GoCDversion=>= 16.1.0, < 26.1.0

Published CVSS scores

4.9GoCDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
CWE-863Incorrect Authorization
T1190Exploit Public-Facing Application

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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