RCE in Splunk Ai Toolkit
CVE-2026-20266
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (48.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Splunk Ai Toolkit
- Splunk Ai Toolkit — versions 5.7
Weakness classification (CWE)
References
- advisory.splunk.com/advisories/SVD-2026-0614 (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-20266?
- CVE-2026-20266 is a critical-severity vulnerability in Splunk Ai Toolkit, classified under OS Command Injection. CVSS score: 9.1/10. Published 2026-06-17.
- How severe is CVE-2026-20266?
- Critical severity. CVSS v3 base score is 9.1 out of 10.