Executive Summary

CVE-2026-20266 is a critical OS command injection vulnerability found in Splunk AI Toolkit versions below 5.7.4.

This vulnerability allows a user with the "admin" Splunk role to execute arbitrary operating system commands on the host running the Splunk Enterprise instance.

The root cause is an unsafe shell execution pattern in the btool configuration helper, which builds OS command strings from dynamic parameters without disabling shell interpretation, enabling command injection.

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Impact Analysis

This vulnerability can have severe impacts because it allows an attacker with admin privileges in Splunk to execute arbitrary OS commands on the host system.

Such command execution can lead to full compromise of the host, including unauthorized data access, data modification, service disruption, or further network penetration.

Given the CVSS score of 9.1 (Critical), the risk level is very high.

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Detection Guidance

No official detection methods or commands are currently available for this vulnerability.

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Mitigation Strategies

To mitigate this vulnerability, upgrade the Splunk AI Toolkit to version 5.7.4 or higher.

As a temporary workaround, you can uninstall the Splunk AI Toolkit app.

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Compliance Impact

This vulnerability allows users with the "admin" Splunk role to execute arbitrary OS commands on the host running Splunk Enterprise, which can lead to unauthorized access, data breaches, and system compromise.

Such unauthorized access and potential data breaches can negatively impact compliance with common standards and regulations like GDPR and HIPAA, which require strict controls over data confidentiality, integrity, and system security.

Therefore, if exploited, this vulnerability could result in violations of these regulations due to compromised data protection and system integrity.

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