What’s Vulnerable › Vulnerabilities
CVE-2026-76397: Improper Access Control in Experiment History through the REST API in Splunk AI Toolkit
- Severity: high (CVSS 8.1 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-19 · updated 2026-08-21
- Weakness: CWE-639
Description
In Splunk AI Toolkit versions below 6.0.0, a user who holds the "power" Splunk role could access and delete all relevant data in experiment history, including data associated with other users. The vulnerability is possible because Splunk AI Toolkit does not preserve the trusted experiment scope when it processes caller-controlled query values before accessing restricted history data. For more information see Experiment Assistants (https://help.splunk.com/en/splunk-cloud-platform/apply-machine-learning/use-ai-toolkit/5.6.4/experiment-assistants) in the Splunk documentation.
Affected products
- Splunk AI Toolkit: from 5.7.0 before 6.0.0 — fixed in 6.0.0
How to fix
Upgrade to a fixed version: Splunk AI Toolkit 6.0.0. Check the vendor advisory for mitigations.
References
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