CVE-2026-76395
Remote Code Execution (RCE) through Deserialization of Untrusted Data in the Model Loading REST API in Splunk AI Toolkit
Description
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.
Weakness: CWE-502
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Splunk Apps & Add-ons | SIEM & Log Management | cna-assigner |
Vendor-reported products (1)
- Splunk · Splunk AI Toolkit
Credit
Gabriel Nitu, Splunk
Vendor remediation
Upgrade each affected Splunk app or add-on to the applicable fixed version listed in Product Status.