Unpatched Argo CD Repo-Server Flaw Could Let Attackers Take Over Kubernetes Clusters

Jul 1, 2026

Argo CD, a widely used tool for deploying software to Kubernetes, has an unpatched flaw in its repo-server component that lets an unauthenticated attacker run code, provided they can reach the component’s internal network port.

Synacktiv, which found the bug, says it can lead to a full cluster takeover. There is no fix and no CVE. The firm says it reported the flaw to Argo CD’s maintainers in

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