{"id":"EUVD-2026-78670","revision":"cbbcff99a77a4a5d87b0219cb5a8bdb4","records":[{"revision":"cbbcff99a77a4a5d87b0219cb5a8bdb4","observedAt":"2026-11-01T10:12:19.145+00:00","statement":{"source":"euvd","id":"EUVD-2026-78670","aliases":["CVE-2026-55636","GHSA-gwxr-7h77-7777"],"title":"Capsule is a multi-tenancy and policy-based framework for Kubernetes. From 0.13.0 until 0.13.6, charts/capsule/templates/configuration.yaml configures the validating webhook with namespace/finalize instead of the Kubernetes resource name na…","description":"Capsule is a multi-tenancy and policy-based framework for Kubernetes. From 0.13.0 until 0.13.6, charts/capsule/templates/configuration.yaml configures the validating webhook with namespace/finalize instead of the Kubernetes resource name namespaces/finalize. A user with namespaces/finalize RBAC can send a PUT request to /api/v1/namespaces/{namespace}/finalize, and the singular rule never matches the plural resource, so the validating webhook is not invoked and the user can change the namespace tenant label. matchPolicy: Equivalent does not compensate because it handles API group and version equivalence rather than resource-name errors. This vulnerability is fixed in 0.13.6.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:H/A:L","score":5.7,"severity":null}],"references":["https://github.com/projectcapsule/capsule/security/advisories/GHSA-gwxr-7h77-7777","https://github.com/projectcapsule/capsule/pull/1966","https://github.com/projectcapsule/capsule/commit/af2f37793e789b2301da8ed8dfb52ab60affebb6","https://github.com/projectcapsule/capsule/releases/tag/v0.13.6"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-78670","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 15, 2026, 3:27:44 PM","dateUpdated":"Sep 15, 2026, 6:02:29 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-78670","identifiers":["EUVD-2026-78670","CVE-2026-55636","GHSA-gwxr-7h77-7777"]},"retained":false,"historicalAffected":[]}],"coverage":[]}