Splunk Mcp Server vulnerabilities

3 CVEs affecting Splunk Mcp Server, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-76286, published 2026-10-07.

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Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2026-20205, published 2026-04-15. High severity, CVSS 7.2. EPSS: 0.3% chance of exploitation in the next 30 days. In Splunk MCP Server app versions below 1.0.3 , a user who holds a role with access to the Splunk `_internal` index or possesses the high-privilege capability `mcp_tool_admin` could view users…
• CVE-2025-20381, published 2025-12-03. Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days. 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…
• CVE-2026-76286, published 2026-10-07. Medium severity, CVSS 5.3. EPSS: 0.2% chance of exploitation in the next 30 days. 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…