Capsule tenant owners with "patch namespace" permission can hijack system namespaces label
Capsule is a multi-tenancy and policy-based framework for Kubernetes. A namespace label injection vulnerability in Capsule v0.10.3 and earlier allows authenticated tenant users to inject arbitrary labels into system namespaces (kube-system, default, capsule-system), bypassing multi-tenant isolation and potentially acce…
Severity critical: primary CNA CVSS 9.1 v3.1 (worst CNA-provided scenario) Not listed in this KEV snapshot. Forecast present in this snapshot.
Published 2025-08-18T16:28:51.317Z. Updated 2025-08-18T17:39:07.476Z.