{"id":"CVE-2026-76286","revision":null,"records":[{"revision":"5a0801ee47834c52a06f813041d90ded","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-76286","aliases":[],"title":"Server-Side Request Forgery (SSRF) through Custom API Tools in Splunk MCP Server","description":"In Splunk MCP Server versions below 1.2.1, Splunk MCP Server could send the Splunk platform authentication token of a user who runs a custom Application Programming Interface (API) tool to the URL configured for that tool. If another user controls that URL, they could capture the token and use it to access data and perform actions as the user who ran the tool. Successful exploitation requires a user who holds a role that contains the mcp_tool_execute capability to run a custom API tool configured by another user. For more information see Configure the Splunk MCP Server (https://help.splunk.com/en/splunk-enterprise/mcp-server-for-splunk-platform/1.2/configure-the-splunk-mcp-server) and Managing custom tools in Splunk MCP Server (https://help.splunk.com/en/splunk-enterprise/mcp-server-for-splunk-platform/1.2/managing-custom-tools-in-splunk-mcp-server) in the Splunk documentation.","state":0,"publishedAt":"2026-10-07T20:46:40.297+00:00","modifiedAt":"2026-10-08T18:00:27.987+00:00","affected":[{"ecosystem":"Vendor product","name":"Splunk MCP Server","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Splunk MCP Server\",\n                    \"vendor\": \"Splunk\",\n                    \"versions\": [\n                        {\n                            \"version\": \"1.2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"custom\",\n                            \"lessThan\": \"1.2.1\"\n                        }\n                    ],\n                    \"modules\": [\n                        \"REST API\"\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:L","score":5.3,"severity":"MEDIUM"}],"references":["https://advisory.splunk.com/advisories/SVD-2026-1004"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-76286","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-76286","identifiers":["CVE-2026-76286"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-d0c54bf27dd44f59b652d410e8e55def","complete":true,"records":13704,"lastAttemptAt":"2026-11-10T17:24:58.2594049+00:00","lastSuccessAt":"2026-11-10T16:26:03.716+00:00","error":null,"lastVerifiedAt":"2026-11-10T16:26:03.716+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13758,"expectedIdentifiers":13758,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-10T17:24:49.2932543+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-10T17:24:49.2932543+00:00","lastSuccessAt":"2026-11-10T17:24:49.459896+00:00","error":null,"lastVerifiedAt":"2026-11-10T17:24:49.4598962+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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