{"id":"CVE-2026-61459","revision":"96f36d8d57b24646b7a6353ca0263e77","records":[{"revision":"96f36d8d57b24646b7a6353ca0263e77","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-61459","aliases":[],"title":"MCP Server Kubernetes < 3.9.0 Argument Injection via kubectl Structured Tools","description":"MCP Server Kubernetes before 3.9.0 contains an argument injection vulnerability in structured tools (kubectl_get, kubectl_describe, kubectl_delete) that allows attackers to bypass the assertNoDangerousFlags security check by supplying resourceType and name parameters with leading dashes. Attackers can inject the --server flag to redirect kubectl commands to an attacker-controlled API server, causing the operator's bearer token to be transmitted externally and enabling full cluster compromise.","state":0,"publishedAt":"2026-07-10T18:34:27.969+00:00","modifiedAt":"2026-07-14T22:03:38.209+00:00","affected":[{"ecosystem":"Vendor product","name":"mcp-server-kubernetes","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Flux159\",\n                    \"product\": \"mcp-server-kubernetes\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:npm/mcp-server-kubernetes\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"3.9.0\"\n                        }\n                    ],\n                    \"repo\": \"https://github.com/Flux159/mcp-server-kubernetes\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.3,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://github.com/Flux159/mcp-server-kubernetes/releases/tag/3.9.0","https://github.com/Flux159/mcp-server-kubernetes/issues/328","https://github.com/Flux159/mcp-server-kubernetes/pull/329","https://github.com/Flux159/mcp-server-kubernetes/commit/d7890f50a4567bf5d9842541ba6f41e180227f9a","https://www.vulncheck.com/advisories/mcp-server-kubernetes-argument-injection-via-kubectl-structured-tools"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-61459","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-61459","identifiers":["CVE-2026-61459"]},"retained":false,"historicalAffected":[]}],"coverage":[]}