Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| mlflow / mlflow/mlflow | affected unspecified before 3.10.0 |
CWE
CWE-862
References
- https://huntr.com/bounties/65beb119-d3e0-4e03-af2f-fa98f78f83dc
- https://github.com/mlflow/mlflow/commit/d7290811d8f3c95366d80109424edc1fb1ad966f
ADP enrichment
No English description supplied.
A flaw was found in MLflow when the `--serve-artifacts` mode is enabled. A remote attacker can exploit this vulnerability due to insufficient resource-level permission checks for multipart upload (MPU) endpoints. This allows the attacker to overwrite artifacts belonging to other users, which can lead to model supply chain poisoning and potentially arbitrary code execution when compromised models are loaded.