{"id":"CVE-2026-61459","summary":"MCP Server Kubernetes \u003c 3.9.0 Argument Injection via kubectl Structured Tools","details":"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.","modified":"2026-07-16T03:31:07.798919557Z","published":"2026-07-10T18:34:27.969Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61459.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-88"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61459.json"},{"type":"ADVISORY","url":"https://github.com/Flux159/mcp-server-kubernetes/releases/tag/3.9.0"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61459"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/mcp-server-kubernetes-argument-injection-via-kubectl-structured-tools"},{"type":"REPORT","url":"https://github.com/Flux159/mcp-server-kubernetes/pull/329"},{"type":"FIX","url":"https://github.com/Flux159/mcp-server-kubernetes/commit/d7890f50a4567bf5d9842541ba6f41e180227f9a"},{"type":"PACKAGE","url":"https://github.com/Flux159/mcp-server-kubernetes"},{"type":"EVIDENCE","url":"https://github.com/Flux159/mcp-server-kubernetes/issues/328"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/flux159/mcp-server-kubernetes","events":[{"introduced":"0"},{"fixed":"874fef739eb5f15bf103c273337d41604458eb01"},{"fixed":"d7890f50a4567bf5d9842541ba6f41e180227f9a"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"3.9.0"}],"source":["DESCRIPTION","REFERENCES"]}}],"versions":["3.8.0","v3.8.0","3.7.0","3.6.2","v3.7.0","v3.6.2","3.6.1","3.5.1","v3.6.1","3.6.0","v3.6.0","v3.5.1","3.5.0","v3.5.0","3.4.0","v3.4.0","3.3.0","v3.3.0","v3.2.2","3.2.1","v3.2.1","3.2.0","v3.2.0","3.1.1","v3.1.1","3.1.0","v3.1.0","3.0.5","v3.0.5","3.0.4","v3.0.4","3.0.3","v3.0.3","3.0.2","v3.0.2","3.0.1","v3.0.1","3.0.0","v3.0.0","2.9.9","v2.9.9","2.9.8","v2.9.8","2.9.7","v2.9.7","2.9.6","v2.9.6","2.9.5","v2.9.5","2.9.4","v2.9.4","2.9.3","v2.9.3","2.9.2","v2.9.2","2.9.1","v2.9.1","2.9.0","v2.9.0","2.8.0","v2.8.0","2.7.0","v2.7.0","2.6.0","v2.6.0","2.5.1","v2.5.1","2.5.0","v2.5.0","2.4.9","v2.4.9","v2.4.8","2.4.7","v2.4.7","2.4.6","v2.4.6","2.4.5","v2.4.5","2.4.4","v2.4.4","2.4.3","2.4.1","v2.4.3","2.4.2","v2.4.2","v2.4.1","2.4.0","2.3.1","v2.4.0","v2.3.1","2.3.0","v2.3.0","2.2.1","v2.2.1","2.2.0","v2.2.0","2.1.1","v2.1.1","2.1.0","v2.1.0","2.0.0","v2.0.0","1.6.2","v1.6.2","1.6.1","v1.6.1","1.6.0","v1.6.0","1.5.0","v1.5.0","1.4.0","v1.4.0","1.3.2","v1.3.2","1.3.1","v1.3.1","1.3.0","v1.3.0","1.2.0","v1.2.0","1.1.0","v1.1.0","1.0.1","v1.0.1","1.0.0","v1.0.0","0.4.0","v0.4.0","0.3.2","v0.3.2","0.3.1","v0.3.1","0.3.0","v0.3.0","0.2.5","v0.2.5","0.2.4","v0.2.4","v0.2.3","v0.2.2","v0.2.1","v0.2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-61459.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"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"}]}