CVE-2026-20266: Splunk Ai Toolkit

Critical severity, CVSS 9.1. EPSS: 0.6% chance of exploitation in the next 30 days.

In Splunk AI Toolkit versions below 5.7.4, a user who holds the "admin" Splunk role could execute arbitrary OS commands on the host running the Splunk Enterprise instance. The vulnerability is possible because of an unsafe shell execution pattern in the btool configuration helper, which constructs OS command strings from dynamic parameters without disabling shell interpretation.

Affected products

• Splunk Ai Toolkit: from 5.7.0, before 5.7.4 (fixed in 5.7.4)

Published 2026-06-17. Last modified 2026-06-22.