CVE-2025-20381 (GCVE-0-2025-20381)

Vulnerability from cvelistv5 – Published: 2025-12-03 17:00 – Updated: 2025-12-03 21:29
VLAI
Title
SPL commands allowlist controls bypass in Splunk MCP Server app through "run_splunk_query" MCP tool
Summary
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
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-03 21:29 UTC
CWE
  • CWE-863 - The software performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
Assigner
cisco CNA under the mitre root
CNA scorecard C 66/100 over 377 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Splunk Splunk MCP Server Affected: 0.2 , < 0.2.4 (custom)
guessed Create a notification for this product.
Date Public
2025-12-03 00:00
Credits
Saket Pandey, Splunk
Show details on NVD website
To clipboard 

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