CVE-2025-55205

CVE-2025-55205 concerns Capsule (Kubernetes multi-tenant framework). Affected: Capsule v0.10.3 and earlier; fixed in v0.10.4. Vulnerability: authenticated tenant users can inject arbitrary labels into system namespaces (e.g., kube-system, default, capsule-system) via namespace labeling, bypassing...

CVE-2025-55205 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...