{"id":"CVE-2025-20381","aliases":["EUVD-2025-200993","GHSA-qf9v-6rq4-3w87"],"status":"published","title":"SPL commands allowlist controls bypass in Splunk MCP Server app through \"run_splunk_query\" MCP tool","description":"In Splunk MCP Server app versions below 0.2.4, a user with access to the \"run_splunk_query\" Model Context Protocol (MCP) tool could bypass the SPL command allowlist controls in MCP by embedding SPL commands as sub-searches, leading to unauthorized actions beyond the intended MCP restrictions.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00236,"percentile":0.14719,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2025-12-03T17:00:25Z","modified":"2026-10-18T17:10:00Z","products":[{"vendor":"splunk","product":"splunk mcp server"}],"references":[{"url":"https://advisory.splunk.com/advisories/SVD-2025-1210"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-20381"},{"url":"https://github.com/advisories/GHSA-qf9v-6rq4-3w87"}],"sources":{"cve":[{"id":"CVE-2025-20381","title":"SPL commands allowlist controls bypass in Splunk MCP Server app through \"run_splunk_query\" MCP tool","description":"In Splunk MCP Server app versions below 0.2.4, a user with access to the \"run_splunk_query\" Model Context Protocol (MCP) tool could bypass the SPL command allowlist controls in MCP by embedding SPL commands as sub-searches, leading to unauthorized actions beyond the intended MCP restrictions.","status":"published","published":"2025-12-03T17:00:25.945Z","modified":"2025-12-03T21:29:51.839Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:32:25.5658Z"}],"euvd":[{"id":"EUVD-2025-200993","description":"In Splunk MCP Server app versions below 0.2.4, a user with access to the \"run_splunk_query\" Model Context Protocol (MCP) tool could bypass the SPL command allowlist controls in MCP by embedding SPL commands as sub-searches, leading to unauthorized actions beyond the intended MCP restrictions.","status":"published","published":"2025-12-03T17:00:25Z","modified":"2025-12-03T21:29:51Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium"}],"updated_at":"2026-11-02T19:49:10.321316Z"}],"ghsa":[{"id":"GHSA-qf9v-6rq4-3w87","title":"In Splunk MCP Server app versions below 0.2.4, a user with access to the \"run_splunk_query\" Model...","description":"In Splunk MCP Server app versions below 0.2.4, a user with access to the \"run_splunk_query\" Model Context Protocol (MCP) tool could bypass the SPL command allowlist controls in MCP by embedding SPL commands as sub-searches, leading to unauthorized actions beyond the intended MCP restrictions.","status":"published","published":"2025-12-03T18:30:25Z","modified":"2025-12-03T18:30:25Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:05:01.323335Z"}],"nvd":[{"id":"CVE-2025-20381","description":"In Splunk MCP Server app versions below 0.2.4, a user with access to the \"run_splunk_query\" Model Context Protocol (MCP) tool could bypass the SPL command allowlist controls in MCP by embedding SPL commands as sub-searches, leading to unauthorized actions beyond the intended MCP restrictions.","status":"published","published":"2025-12-03T17:15:50.18Z","modified":"2026-10-18T17:10:00.11Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"secondary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:11:47.746175Z"}]}}