CVE-2025-20381
SPL commands allowlist controls bypass in Splunk MCP Server app through "run_splunk_query" MCP tool
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 5.4EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
03 Dec 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Affected products
Splunk · Splunk MCP ServerWant to know if your infrastructure is exposed to this?
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