CVE-2026-20266 OS Command Injection in the btool Configuration Helper in Splunk AI Toolkit
An admin user can execute arbitrary OS commands on the host via unsafe shell execution in the btool configuration helper.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-20266?
CVE-2026-20266 is a critical command injection vulnerability in Splunk AI Toolkit, published on 17 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
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.
Weakness: CWE-78
Which versions are affected by CVE-2026-20266?
It affects 1 product.
Products include Splunk Ai Toolkit.
How do I fix CVE-2026-20266?
No fix has been published for CVE-2026-20266 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-20266 being exploited?
There is no known exploitation of CVE-2026-20266 in the wild and no public exploit code.
Other vulnerabilities in Splunk AI Toolkit
- CVE-2026-76395 Deserialization in Splunk AI Toolkit
- CVE-2026-76391 Improper Privilege Management through Agent Run History in Splunk AI Toolkit
- CVE-2026-76394 Missing Authorization in Container and Connection Management through the REST API in Splunk AI Toolkit
- CVE-2026-76397 Improper Access Control in Experiment History through the REST API in Splunk AI Toolkit
- CVE-2026-76399 Incorrect Permission Assignment for Scheduled Searches in Splunk AI Toolkit
Sources
Also known as GHSA-vxp7-5w84-27pf.