{"id":"CVE-2025-55205","summary":"Capsule tenant owners with \"patch namespace\" permission can hijack system namespaces label","details":"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.","aliases":["GHSA-fcpm-6mxq-m5vv","GO-2025-3893"],"modified":"2026-08-12T03:51:12.010217078Z","published":"2025-08-18T16:28:51.317Z","database_specific":{"cwe_ids":["CWE-863"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55205.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/55xxx/CVE-2025-55205.json"},{"type":"ADVISORY","url":"https://github.com/projectcapsule/capsule/security/advisories/GHSA-fcpm-6mxq-m5vv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-55205"},{"type":"FIX","url":"https://github.com/projectcapsule/capsule/commit/e1f47feade6e1695b2204407607d07c3b3994f6e"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/projectcapsule/capsule","events":[{"introduced":"0"},{"fixed":"e1f47feade6e1695b2204407607d07c3b3994f6e"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"0.10.4"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v0.10.3","v0.10.2","v0.10.1","v0.10.0","v0.9.0","v0.8.1","v0.8.0","v0.7.4","v0.7.3","v0.7.2","v0.7.1","v0.7.0","v0.7.0-rc.1","v0.6.2","v0.6.1","v0.6.0","v0.6.0-rc0","helm-v0.6.0","v0.5.0","v0.4.2","helm-v0.5.3","v0.4.1","helm-v0.5.2","helm-v0.5.1","helm-v0.4.7","v0.4.0","v0.4.0-rc.3","helm-v0.5.0","v0.4.0-rc.2","v0.4.0-rc.1","helm-v0.4.8","helm-v0.4.6","v0.3.3","helm-v0.4.4","v0.3.2","helm-v0.4.3","helm-v0.4.2","v0.3.1","helm-v0.4.1","v0.3.0","helm-v0.4.0","helm-v0.3.6","helm-v0.3.5","v0.2.1","helm-v0.3.1","helm-v0.3.4","helm-v0.3.3","helm-v0.3.2","v0.2.0","helm-v0.3.0","helm-v0.2.0","v0.1.3","helm-v0.1.12","v0.1.2","helm-v0.1.11","helm-v0.1.10","v0.1.2-rc1","v0.1.2-rc0","helm-v0.1.8","helm-v0.1.7","helm-v0.1.6","v0.1.1","helm-v0.1.4","v0.1.1-rc1","helm-v0.1.3","helm-v0.1.2","helm-v0.1.1","v0.1.1-rc0","v0.1.0","helm-v0.1.0","v0.1.0-rc6","v0.1.0-rc5","v0.1.0-rc4","v0.1.0-rc3","v0.1.0-rc2","v0.1.0-rc1","v0.0.5","v0.0.5-rc2","v0.0.5-rc1","v0.0.4","v0.0.3","v0.0.2","0.2.0-rc1","v0.0.1","0.0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-55205.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H"}]}