CVE-2026-76404
CriticalCVSS 9.1Summary
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.
Risk Assessment
A user with administrative privileges can fully compromise the operating system, leading to complete environment compromise.
Recommendation
Update the Splunk MCP Server app to version 1.2.1 or later, which includes the input validation fix.
Original NVD description (English source)
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.