CVE-2026-76394

Received Received - Intake

Privilege Escalation in Splunk AI Toolkit

Publication date: 2026-08-19

Last updated on: 2026-08-19

Assigner: Cisco Systems, Inc.

Description

In Splunk AI Toolkit versions below 6.0.0, a low-privileged user who does not hold the "admin" or "power" Splunk roles could start, stop, and configure containers, and read or modify connection and configuration data through the Representational State Transfer (REST) API. The missing authorization is possible because multiple REST API handlers in Splunk AI Toolkit do not enforce authorization checks. For more information see Troubleshoot the Splunk Machine Learning Toolkit (https://help.splunk.com/en/splunk-cloud-platform/apply-machine-learning/machine-learning-toolkit-user-guide/5.5.0/troubleshooting-mltk/troubleshoot-the-splunk-machine-learning-toolkit) in the Splunk documentation.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-19

Last Modified

2026-08-19

Generated

2026-08-20

AI Q&A

2026-08-20

EPSS Evaluated

N/A

NVD

CVE-2026-76394

EUVD

EUVD-2026-62959

Affected Vendors & Products

Vendor	Product	Version / Range
splunk	splunk_ai_toolkit	to 6.0.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-862	The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

Executive Summary

In Splunk AI Toolkit versions below 6.0.0, a low-privileged user without admin or power roles could start, stop, and configure containers, and read or modify connection and configuration data through the REST API. This happens because some REST API handlers do not enforce proper authorization checks.

Detection Guidance

Detect unauthorized container operations or REST API access by monitoring Splunk AI Toolkit logs for unusual activity. Check for container start/stop commands or API calls from non-admin users. Review REST API access logs for endpoints related to containers or configurations.

Impact Analysis

An attacker with low privileges could gain unauthorized access to sensitive data, alter configurations, or disrupt services by manipulating containers and API endpoints. This could lead to data breaches, service outages, or unauthorized system changes.

Compliance Impact

This vulnerability could lead to unauthorized access or modification of sensitive data, violating GDPR and HIPAA requirements for data protection and access controls. Non-compliance may result in legal penalties, fines, or reputational damage.

Mitigation Strategies

Upgrade Splunk AI Toolkit to version 6.0.0 or later to enforce proper authorization checks. Restrict access to Splunk roles by ensuring only admin or power users can manage containers and configurations. Review and audit existing user permissions.

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