CVE-2026-52742 GoCD is vulnerable to historical server configuration API authorization bypass
Pipeline group administrators can access full server configuration, including sensitive keys, allowing rogue agent registration and potential privilege escalation.
- 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-2026-52742?
CVE-2026-52742 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 12.3.1 until 26.1.0, legacy routes under /go/admin/restful/* expose historical full server configuration to pipeline group administrators instead of restricting responses to configuration for groups they administer. The disclosed configuration can include agent auto-registration keys, webhook invocation keys, encrypted material credentials, and GoCD administrator lists. A malicious pipeline group administrator can use disclosed agent registration data to connect a rogue compatible agent, which can create a higher-complexity path to receiving work or overwriting artifacts associated with other groups. Normal authenticated users are not affected, the endpoint does not modify server configuration, and deployments that restrict pipeline editing to full administrators or configuration repositories are not affected. This issue is fixed in version 26.1.0.
Weakness: CWE-863
Which versions are affected by CVE-2026-52742?
How do I fix CVE-2026-52742?
No fix has been published for CVE-2026-52742 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-2026-52742 being exploited?
There is no known exploitation of CVE-2026-52742 in the wild and no public exploit code.
Sources
Also known as GHSA-7xxx-fv46-vp7h.