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.
References (1)
Core 1
Core References
Various Sources
https://advisory.splunk.com/advisories/SVD-2025-1210
Scores
CVSS v3
5.4
EPSS
0.0005
EPSS Percentile
15.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-863
Status
published
Products (1)
Splunk/Splunk MCP Server
0.2 - 0.2.4
Published
Dec 03, 2025
Tracked Since
Feb 18, 2026