A vulnerability in MLflow versions <=3.10.1.dev0 allows unauthorized access to multipart upload (MPU) endpoints when the `--serve-artifacts` mode is enabled. The authorization logic does not enforce resource-level permission checks for `/mlflow-artifacts/mpu/*` endpoints, enabling attackers to overwrite artifacts belonging to other users. This can lead to unauthorized cross-user writes, model supply chain poisoning, and arbitrary code execution when compromised models are loaded. The issue is resolved in version 3.10.0.
Advisories
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Fixes
Solution
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Workaround
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References
History
Mon, 25 May 2026 07:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mlflow
Mlflow mlflow/mlflow |
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| Vendors & Products |
Mlflow
Mlflow mlflow/mlflow |
Mon, 25 May 2026 06:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A vulnerability in MLflow versions <=3.10.1.dev0 allows unauthorized access to multipart upload (MPU) endpoints when the `--serve-artifacts` mode is enabled. The authorization logic does not enforce resource-level permission checks for `/mlflow-artifacts/mpu/*` endpoints, enabling attackers to overwrite artifacts belonging to other users. This can lead to unauthorized cross-user writes, model supply chain poisoning, and arbitrary code execution when compromised models are loaded. The issue is resolved in version 3.10.0. | |
| Title | Missing Authorization Validation in mlflow/mlflow | |
| Weaknesses | CWE-862 | |
| References |
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| Metrics |
cvssV3_0
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Projects
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Status: PUBLISHED
Assigner: @huntr_ai
Published:
Updated: 2026-05-25T06:00:34.002Z
Reserved: 2026-02-18T01:33:23.276Z
Link: CVE-2026-2651
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OpenCVE Enrichment
Updated: 2026-05-25T07:30:19Z
Weaknesses