| Component | MLflow |
| Severity | high (CVSS 7.5) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| Published (NVD) | 2024-04-16 |
| Last modified | 2026-06-17 |
| Affected versions | mlflow < 2.12.1 |
| Fixed in | 2.12.1 |
| Weakness | CWE-22 |
| CISA KEV | not listed |
NVD description
A path traversal vulnerability exists in the `_create_model_version()` function within `server/handlers.py` of the mlflow/mlflow repository, due to improper validation of the `source` parameter. Attackers can exploit this vulnerability by crafting a `source` parameter that bypasses the `_validate_non_local_source_contains_relative_paths(source)` function's checks, allowing for arbitrary file read access on the server. The issue arises from the handling of unquoted URL characters and the subsequent misuse of the original `source` value for model version creation, leading to the exposure of sensitive files when interacting with the `/model-versions/get-artifact` handler.
What to do
- Upgrade MLflow to
2.12.1or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
Read more
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