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High 8.1Published Aug 19, 2026

CVE-2026-76397Improper Access Control in Experiment History through the REST API in Splunk AI Toolkit

Updated under an hour ago ()

Does this affect you?

It affects Splunk AI Toolkit. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE)
CWE-639
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
cisco
NVD analysis
Analyzed
Record last updated
Aug 20, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Splunk Splunk AI Toolkit
splunk:ai_toolkit (from the name)
from 5.7 before 6.0.0
CNA record
splunk ai_toolkit
splunk:ai_toolkit
from 5.7.0 before 6.0.0
NVD

References

  • vendor-advisory

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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