CVE-2026-76395

HIGH CVSS 3.1: 8.8 EPSS 0.49%
Updated Aug 26, 2026
Splunk
Parameter Value
CVSS 8.8 (HIGH)
Affected Versions 5.7.0 — 6.0.0
Fixed In 6.0.0
Type CWE-502 (Deserialization of Untrusted Data)
Vendor Splunk
Public PoC No

In Splunk AI Toolkit versions below 6.0.0, a user who holds the "power" Splunk role could execute arbitrary code on the Splunk server by loading a model file containing crafted sparse matrix data. The deserialization of untrusted data is possible because a model codec in Splunk AI Toolkit deserializes sparse matrix data without guarding against embedded pickle content. For more information see Troubleshoot the Splunk Machine Learning Toolkit (https://help.splunk.com/en/splunk-cloud-platform/apply-machine-learning/machine-learning-toolkit-user-guide/5.5.0/troubleshooting-mltk/troubleshoot-the-splunk-machine-learning-toolkit) 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
High
Complete denial of service

CVSS Vector v3.1

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