CVE-2026-76404

Summary

In Splunk MCP Server app versions below 1.2.1, a user who holds the "admin" Splunk role could execute arbitrary commands on the underlying operating system. The vulnerability is possible because of missing input validation in the app's credential management component, which deserializes stored data without checking whether the content is of the expected type.

Affected Software

VendorProductVersion RangeStatus
SplunkSplunk MCP Server app1.2 < 1.2.1affected

Weaknesses

  • CWE-502: The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.

Workarounds

Turn off or remove the Splunk MCP Server app. For more information see Manage app and add-on objects in the Splunk documentation.

References