Critical severity · published Jun 17, 2026
CVE-2026-20266
OS Command Injection in the btool Configuration Helper in Splunk AI Toolkit
9.1
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SA
Splunk AI Toolkit · Splunk
5.7 before 5.7.4 · source: vendor
AT
AI Toolkit · Splunk
5.7.0 before 5.7.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-20266
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-20266
Vendor Advisory
https://advisory.splunk.com/advisories/SVD-2026-0614
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