CVE-2026-55625 GoCD is vulnerable to authorization bypass via material connection test APIs
A pipeline group administrator can bypass authorization checks to test materials and access credentials or secrets from unauthorized pipeline groups or configuration repositories.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-55625?
CVE-2026-55625 is a medium-severity missing authorization vulnerability in gocd, published on 21 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
GoCD is a continuous deliver server. From 16.1.0 until 26.1.0, the internal material connection test APIs at /go/api/admin/internal/material_test and /go/api/internal/config_repos/*/material_test accept an arbitrary existing pipeline and pipeline-group context without sufficient validation. A pipeline group administrator can invoke Test Connection for source control materials outside the administrator's authorized pipeline group or configuration repository and potentially use credentials from those materials. For GoCD 20.6.0 and later, the test context can also resolve external secrets managed by secret-management plugins, including global reusable secrets with separate permissions. This issue is fixed in version 26.1.0.
Which versions are affected by CVE-2026-55625?
How do I fix CVE-2026-55625?
No fix has been published for CVE-2026-55625 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-55625 being exploited?
There is no known exploitation of CVE-2026-55625 in the wild and no public exploit code.
Sources
Also known as GHSA-4557-94j8-5p66.