{"schema":"threatline.record/2","record":{"id":"CVE-2026-61459","aliases":["GHSA-wmg3-h8mf-wgvr","PYSEC-2026-3685"],"summary":"mcp-server-kubernetes argument injection can expose Kubernetes cluster credentials","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.","categories":["Containers & cloud"],"product":"mcp-server-kubernetes","vendor":"Flux159","ecosystem":"npm","affected_ranges":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-wmg3-h8mf-wgvr","source_modified_at":"2026-10-28T15:08:29Z","fetched_at":"2026-10-28T15:55:58.673066Z","package":{"ecosystem":"npm","name":"mcp-server-kubernetes"},"range":"< 3.9.0"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-61459","source_modified_at":"2026-07-14T22:03:38.209Z","fetched_at":"2026-10-28T15:55:58.673066Z","product":"mcp-server-kubernetes","vendor":"Flux159","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"3.9.0"}],"defaultStatus":"unaffected"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-wmg3-h8mf-wgvr","source_modified_at":"2026-10-28T15:15:05.434117744Z","fetched_at":"2026-10-28T15:55:58.673066Z","package":{"name":"mcp-server-kubernetes","ecosystem":"npm","purl":"pkg:npm/mcp-server-kubernetes"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.9.0"}]}],"versions":[]}],"fixed_versions":[{"source":"GitHub Advisory Database","source_url":"https://github.com/advisories/GHSA-wmg3-h8mf-wgvr","source_modified_at":"2026-10-28T15:08:29Z","fetched_at":"2026-10-28T15:55:58.673066Z","package":{"ecosystem":"npm","name":"mcp-server-kubernetes"},"version":"3.9.0"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-61459","source_modified_at":"2026-07-14T22:03:38.209Z","fetched_at":"2026-10-28T15:55:58.673066Z","package":{"name":"mcp-server-kubernetes","ecosystem":null},"version":"3.9.0","basis":"first unaffected version stated in the CVE record"},{"source":"OSV","source_url":"https://osv.dev/vulnerability/GHSA-wmg3-h8mf-wgvr","source_modified_at":"2026-10-28T15:15:05.434117744Z","fetched_at":"2026-10-28T15:55:58.673066Z","package":{"name":"mcp-server-kubernetes","ecosystem":"npm","purl":"pkg:npm/mcp-server-kubernetes"},"version":"3.9.0"}],"cvss":9.3,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.02362,"percentile":0.8372,"score_date":"2026-10-28"},"published_at":"2026-07-10T18:34:27.969Z","modified_at":"2026-10-28T15:15:05.434117744Z","provenance":[{"source":"GitHub Advisory Database","url":"https://github.com/advisories/GHSA-wmg3-h8mf-wgvr","fetched_at":"2026-10-28T15:55:58.673066Z","source_modified_at":"2026-10-28T15:08:29Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-61459","fetched_at":"2026-10-28T15:55:58.673066Z","source_modified_at":"2026-07-14T22:03:38.209Z"},{"source":"OSV","url":"https://osv.dev/vulnerability/GHSA-wmg3-h8mf-wgvr","fetched_at":"2026-10-28T15:55:58.673066Z","source_modified_at":"2026-10-28T15:15:05.434117744Z"},{"source":"Exploit-DB","url":"https://www.exploit-db.com/exploits/52638","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-08-11"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-61459","fetched_at":"2026-10-28T15:55:58.673066Z","source_modified_at":"2026-10-28"}],"sources":["GitHub Advisory Database","CVE List","OSV","Exploit-DB","EPSS"],"references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61459","source":"GitHub Advisory Database"},{"source":"CVE List","url":"https://github.com/Flux159/mcp-server-kubernetes/issues/328","tags":["exploit","technical-description"]},{"source":"CVE List","url":"https://github.com/Flux159/mcp-server-kubernetes/pull/329","tags":["issue-tracking"]},{"source":"CVE List","url":"https://github.com/Flux159/mcp-server-kubernetes/commit/d7890f50a4567bf5d9842541ba6f41e180227f9a","tags":["patch"]},{"source":"CVE List","url":"https://github.com/Flux159/mcp-server-kubernetes/releases/tag/3.9.0","tags":["release-notes"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/mcp-server-kubernetes-argument-injection-via-kubectl-structured-tools","tags":["third-party-advisory"]},{"url":"https://github.com/advisories/GHSA-wmg3-h8mf-wgvr","source":"GitHub Advisory Database"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","ssvc":{"exploitation":"poc","automatable":"yes","technical_impact":"total","assessed_at":"2026-07-13T14:55:05.825674Z"},"exploits":[{"added":"2026-08-11","date":"2026-08-11","kind":"Remote exploit","name":"mcp-server-kubernetes 3.8.x - Argument Injection","source":"Exploit-DB","url":"https://www.exploit-db.com/exploits/52638","verified":false}],"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-28T15:15:05.434117744Z","content_hash":"1d272bd559ba6f105352493b8865866a5cce11f6de783c937e4c2aabd533046e"}}