CVE-2026-76397

HIGH CVSS 3.1: 8.1 EPSS 0.25%
Updated Aug 21, 2026
Splunk
Parameter Value
CVSS 8.1 (HIGH)
Affected Versions 5.7.0 — 6.0.0
Fixed In 6.0.0
Type CWE-639 (Authorization Bypass)
Vendor Splunk
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
None
No disruption

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Splunk Ai_Toolkit
cpe:2.3:a:splunk:ai_toolkit:*:*:*:*:*:*:*:*
5.7.0 6.0.0