High [CVE-2026-76395] Remote Code Execution (RCE) through Deserialization of Untrusted Data in the Model Loading REST API in Splunk AI Toolkit
This high-severity Splunk advisory covers CVE-2026-76395 affecting Splunk AI Toolkit.
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Summary
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 ( ) in the Splunk documentation.
- Splunk AI Toolkit 5.7 before 6.0.0
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- 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.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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