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TI-2025-14674 Aliases CVE-2025-20381GHSA-qf9v-6rq4-3w87

SPL commands allowlist controls bypass in Splunk MCP Server app through "run_splunk_query" MCP tool

Priority LOW 24CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-863.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00236 14th percentileScored 2026-11-07
Fix Fixed Splunk MCP Server (Splunk): 0.2.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SplunkSplunk MCP Server0.2 to before 0.2.40.2.4Patch availableCNA
  • Splunk MCP Server VendorSplunk Affected 0.2 to before 0.2.4 Fixed in 0.2.4 Patch available CNA

Remediation

  • Fix · CNA Splunk MCP Server (Splunk) Fixed in 0.2.4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-20381
  2. 2026-10-03 Alias added: GHSA-qf9v-6rq4-3w87

References

Other 1

  • TI-2026-16444 Unauthenticated Arbitrary File Creation and Truncation in a PostgreSQL Sidecar Service Endpoint in Splunk Enterprise KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
  • TI-2023-24841 Remote code execution (RCE) in Splunk Enterprise through Insecure XML Parsing CVSS 3.1HIGH 8.8
  • TI-2023-12257 Injection in https://github.com/curl/curl CVSS 3.1CRITICAL 9.8
  • TI-2022-13930 Information disclosure in https://github.com/curl/curl CVSS 3.1CRITICAL 9.8
  • TI-2022-13917 Incorrect default permissions in https://github.com/curl/curl CVSS 3.1CRITICAL 9.8
See all 450 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences