Splunk AI Toolkit up to 5.7.3 Configuration os command injection

Summaryinfo

A vulnerability, which was classified as critical, has been found in Splunk AI Toolkit up to 5.7.3. The impacted element is an unknown function of the component Configuration Handler. Performing a manipulation results in os command injection. This vulnerability was named CVE-2026-20266. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Splunk AI Toolkit up to 5.7.3. It has been classified as critical. This affects an unknown functionality of the component Configuration Handler. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at advisory.splunk.com. This vulnerability is uniquely identified as CVE-2026-20266 since 10/08/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are necessary for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

Upgrading to version 5.7.4 eliminates this vulnerability.

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Productinfo

Type

• Log Management Software

Vendor

• Splunk

Name

• AI Toolkit

Version

• 5.7.0
• 5.7.1
• 5.7.2
• 5.7.3

License

• free

CPE 2.3info

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• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
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