{"schema":"threatline.record/2","record":{"id":"CVE-2026-115845","aliases":[],"summary":"Incomplete validation in the run_script Python sandbox in AWS MCP Server","details":"An incomplete list of disallowed inputs in the Python code validator of the run_script tool in AWS MCP Server might allow an authenticated remote user to execute arbitrary code within their own isolated session environment via a crafted script.\n\n\n\nAWS fixed this issue service-side. No customer action is required.","categories":["Containers & cloud"],"product":"AWS MCP Server","vendor":"AWS","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-115845","source_modified_at":"2026-10-23T19:04:44.790Z","fetched_at":"2026-10-23T19:58:35.668311Z","product":"AWS MCP Server","vendor":"AWS","versions":[{"status":"affected","version":"N/A","versionType":"custom"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":6.4,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.0038,"percentile":0.3085,"score_date":"2026-10-24"},"published_at":"2026-10-23T19:04:44.790Z","modified_at":"2026-10-23T19:04:44.790Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-115845","fetched_at":"2026-10-23T19:58:35.668311Z","source_modified_at":"2026-10-23T19:04:44.790Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-115845","fetched_at":"2026-10-24T18:03:20.872036Z","source_modified_at":"2026-10-24"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://aws.amazon.com/security/security-bulletins/2026-149-aws/","tags":["vendor-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-23T19:04:44.790Z","content_hash":"9dd415ce688774d48edcf0638d004c9e31cd6277de80b5bc20506cf1884c7609"}}