Vulnerability · Published Sep 21, 2026 · Assigned by GitHub_M

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

Medium 4.9

In plain English

A medium-severity authorization bypass via user-controlled key in gocd from gocd. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities).

Severity (CVSS 3.1)4.9Medium

Exploit odds (30 days)0.6%top 51.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
gocd	gocd	>= 16.1.0, < 26.1.0

Weakness: CWE-639, CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

References

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