Portainer: Kubernetes middleware continues after token validation failure, bypassing endpoint authorization
Portainer Community Edition is a lightweight service delivery platform for containerized applications that can be used to manage Docker, Swarm, Kubernetes and ACI environments. From 2.33.0 to before 2.33., Portainer proxies requests to Kubernetes clusters through a middleware layer (kubeClientMiddleware) that validates…
Severity high: primary CNA CVSS 8.1 v3.1 (worst CNA-provided scenario) Not listed in this KEV snapshot. Forecast present in this snapshot.
Published 2026-05-28T21:01:31.113Z. Updated 2026-05-30T02:20:47.586Z.