VULNERABILITY INTELLIGENCE

CVE-2026-76404

CVSS score9.1 CRITICAL
EPSS probability0.75%
CISA KEVNot currently listed
Published2026-08-19
Last modified2026-10-24
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

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.

Weakness classification

  • psirt@cisco.com: CWE-502

Primary references