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CVE PROGRAM SOURCE RECORD9.1 Critical

CVE-2026-76404

Remote Code Execution (RCE) through Deserialization of Untrusted Data in Splunk MCP Server app

Description

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Splunk Splunk MCP Server app

  • 1.2 to < 1.2.1affected

References