MLflow up to 3.14.x Model Version Creation handlers.py _validate_source_run/_validate_source_model run_id/model_id permission

Summaryinfo

A vulnerability categorized as problematic has been discovered in MLflow up to 3.14.x. Impacted is the function _validate_source_run/_validate_source_model of the file mlflow/server/handlers.py of the component Model Version Creation. Executing a manipulation of the argument run_id/model_id can lead to permission. This vulnerability is tracked as CVE-2026-69148. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in MLflow up to 3.14.x. It has been declared as problematic. This vulnerability affects the function _validate_source_run/_validate_source_model of the file mlflow/server/handlers.py of the component Model Version Creation. The manipulation of the argument run_id/model_id with an unknown input leads to a permission vulnerability. The CWE definition for the vulnerability is CWE-275. As an impact it is known to affect confidentiality. CVE summarizes:

MLflow is an open source AI engineering platform for agents, large language models, and machine learning models. Prior to 3.15.0, CreateModelVersion accepts a run_id or model_id after _validate_source_run() or _validate_source_model() in mlflow/server/handlers.py verifies only path containment, allowing authenticated users to create a model version that references another user's artifact directory and read files through GET /model-versions/get-artifact without the required READ permission. This issue is fixed in version 3.15.0.

The advisory is available at github.com. This vulnerability was named CVE-2026-69148 since 08/03/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1222 by the MITRE ATT&CK project.

Upgrading to version 3.15.0 eliminates this vulnerability.

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Productinfo

Name

• MLflow

Version

• 3.0
• 3.1
• 3.2
• 3.3
• 3.4
• 3.5
• 3.6
• 3.7
• 3.8
• 3.9
• 3.10
• 3.11
• 3.12
• 3.13
• 3.14

Website

• Product: https://github.com/mlflow/mlflow/

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CPE 2.2info

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