# 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.

- **Severity:** Medium 4.9 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 21 Sep 2026
- **Updated:** 24 Sep 2026
- **Also known as:** GHSA-4557-94j8-5p66

## 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.

Weakness: CWE-863 (Incorrect Authorization), CWE-639 (Authorization Bypass Through User-Controlled Key)

## 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.

## Is CVE-2026-55625 being exploited?

There is no known exploitation of CVE-2026-55625 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-55625 and fix it if it is affected.

What it is: 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.
Exploitation: There is no known exploitation of CVE-2026-55625 in the wild and no public exploit code.

Affected product: gocd. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-55625/ (Markdown: https://insights.sbomify.com/CVE-2026-55625/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-55625
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-55625
- OSV: https://osv.dev/vulnerability/CVE-2026-55625

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-55625/
Summaries are generated and may contain mistakes; the official description above is the record.