{"id":"CVE-2026-41068","aliases":["BIT-kyverno-2026-41068","GHSA-cvq5-hhx3-f99p","GO-2026-5337"],"url":"https://o3.security/vulnerability/CVE-2026-41068","summary":"Kyverno: Cross-Namespace Read Bypasses RBAC Isolation (CVE-2026-22039 Incomplete Fix)","details":"Kyverno is a policy engine designed for cloud native platform engineering teams. The patch for CVE-2026-22039 fixed cross-namespace privilege escalation in Kyverno's `apiCall` context by validating the `URLPath` field. However, the ConfigMap context loader has the identical vulnerability — the `configMap.namespace` field accepts any namespace with zero validation, allowing a namespace admin to read ConfigMaps from any namespace using Kyverno's privileged service account. This is a complete RBAC bypass in multi-tenant Kubernetes clusters. An updated fix is available in version 1.17.2.","published":"2026-04-24T03:14:27.640Z","modified":"2026-07-31T18:30:35.256079203Z","cvss":{"score":7.7,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/kyverno/kyverno","fixedVersion":null}],"fix":{"url":"https://github.com/kyverno/kyverno/commit/bbf3e5c01391d612968440659028ae98e565a777","label":"kyverno/kyverno@bbf3e5c"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41068.json"},{"type":"ADVISORY","url":"https://github.com/kyverno/kyverno/security/advisories/GHSA-cvq5-hhx3-f99p"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41068"},{"type":"FIX","url":"https://github.com/kyverno/kyverno/commit/bbf3e5c01391d612968440659028ae98e565a777"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-31T18:30:35.256079203Z"}}