CVE Alert: CVE-2025-55205
Vulnerability Summary: CVE-2025-55205
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 accessing cross-tenant resources through TenantResource selectors. This vulnerability enables privilege escalation and violates the fundamental security boundaries that Capsule is designed to enforce. This vulnerability is fixed in 0.10.4.
Affected Endpoints:
No affected endpoints listed.
Published Date:
8/18/2025, 5:15:30 PM
💀 CVSS Score:
Exploit Status:
Not ExploitedReferences:
- https://github.com/projectcapsule/capsule/commit/e1f47feade6e1695b2204407607d07c3b3994f6e
- https://github.com/projectcapsule/capsule/security/advisories/GHSA-fcpm-6mxq-m5vv
Recommended Action:
No proposed action available. Please refer to vendor documentation for updates.
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