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Vulnerabilities CVE-2026-76393

CVE-2026-76393

Medium
Open
TLP:CLEAR

Race Condition during Model Upload through the REST API in Splunk AI Toolkit

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Description

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.

Details

CVSS Score
5.9
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:H/A:L
Confidence
90%
Published
Aug 19, 2026
Last Modified
Aug 19, 2026
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