# CVE-2026-76398: Improper Access Control during Experiment History Deletion through the REST API in Splunk AI Toolkit

> CVE-2026-76398: Improper Access Control during Experiment History Deletion through the REST API in Splunk AI Toolkit. CVSS 4.3 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-76398
Last updated: 2026-08-24T19:24:02Z

- Published: 2026-08-19 21:35 UTC · Updated: 2026-08-24 19:24 UTC · Assigner: cisco
- CVSS: 4.3 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- EPSS: 0.25%, 17th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-862

## Description

In Splunk AI Toolkit versions below 6.0.1, a user who does not hold the "admin" or "power" Splunk roles could delete the experiment history of another user without permission through the Representational State Transfer (REST) API. The vulnerability is possible because Splunk AI Toolkit deletes experiment history before it verifies that the user can delete the associated experiment. 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 vendors and products

- Splunk: Splunk AI Toolkit

## Tracked companies

- [Splunk](https://rewindex.com/company/splunk.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-76398)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-76398)
- [https://advisory.splunk.com/advisories/SVD-2026-0808](https://advisory.splunk.com/advisories/SVD-2026-0808)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-76398 · Markdown: https://rewindex.com/cve/CVE-2026-76398.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-76398 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T02:11:21.982Z