CVE-2026-76397CWE-639

CVE-2026-76397

High · published August 20, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
27.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00350 · 27.4th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-08-20T02:17Z
Affected products (1)
ProductVersionsFixed in
splunk/ai_toolkit≥ 5.7.0, < 6.0.06.0.0
References (1)
EPSS history
Timeline
  • 19 AUG 21:35Z
    Improper Access Control in Experiment History through the REST API in Splunk AI Toolkit
    cvelistv5