{"id":"GHSA-wmg3-h8mf-wgvr","revision":"2d1d47adbc914088a765c97a1e3bc28c","records":[{"revision":"2d1d47adbc914088a765c97a1e3bc28c","observedAt":"2026-10-28T15:47:00.702+00:00","statement":{"source":"osv","id":"GHSA-wmg3-h8mf-wgvr","aliases":["CVE-2026-61459","PYSEC-2026-3685"],"title":"mcp-server-kubernetes argument injection can expose Kubernetes cluster credentials","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":"2026-07-10T21:32:32+00:00","modifiedAt":"2026-10-28T15:15:05.4341177+00:00","affected":[{"ecosystem":"npm","name":"mcp-server-kubernetes","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"3.9.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":null,"severity":null},{"system":"CVSS_V4","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":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"CRITICAL"}],"references":["https://nvd.nist.gov/vuln/detail/CVE-2026-61459","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://github.com/Flux159/mcp-server-kubernetes","https://github.com/Flux159/mcp-server-kubernetes/releases/tag/3.9.0","https://www.vulncheck.com/advisories/mcp-server-kubernetes-argument-injection-via-kubectl-structured-tools"],"sourceUrl":"https://github.com/advisories/GHSA-wmg3-h8mf-wgvr","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-wmg3-h8mf-wgvr","identifiers":["GHSA-wmg3-h8mf-wgvr","CVE-2026-61459","PYSEC-2026-3685"]},"retained":false,"historicalAffected":[]}],"coverage":[]}