CVE-2026-76393: medium-severity vulnerability in Splunk AI Toolkit
Race Condition during Model Upload through the REST API in Splunk AI Toolkit
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.9epss 0.2%
In Splunk AI Toolkit versions below 6.0.0, a user who can upload models could overwrite a model being uploaded by another user by sending a concurrent upload request for the same model name, causing the resulting model lookup entry to reference attacker-controlled content. The race condition is possible because Splunk AI Toolkit does not verify that the uploaded content belongs to the request that creates the model lookup entry. 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.
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:H/A:L
Affected products
Splunk · Splunk AI ToolkitRelated CVEs — Splunk AI Toolkit
In the same product, most dangerous first.
CVE-2026-76395HIGHRemote Code Execution (RCE) through Deserialization of Untrusted Data in the Model Loading REST API in Splunk AI ToolkitEPSS 0.7%CVE-2026-20266CRITICALOS Command Injection in the btool Configuration Helper in Splunk AI ToolkitEPSS 0.6%CVE-2026-76391HIGHImproper Privilege Management through Agent Run History in Splunk AI ToolkitEPSS 0.5%CVE-2026-76399HIGHIncorrect Permission Assignment for Scheduled Searches in Splunk AI ToolkitEPSS 0.4%CVE-2026-76397HIGHImproper Access Control in Experiment History through the REST API in Splunk AI ToolkitEPSS 0.4%CVE-2026-76394HIGHMissing Authorization in Container and Connection Management through the REST API in Splunk AI ToolkitEPSS 0.4%