Vulnerability in Lfprojects Mlflow
CVE-2026-4137
In mlflow/mlflow versions prior to 3.11.0, the `get_or_create_nfs_tmp_dir()` function in `mlflow/utils/file_utils.py` creates temporary directories with world-writable permissions (0o777), and the `_create_model_downloading_tmp_dir()` func…
EPSS: 0.000 (0.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Lfprojects Mlflow
- Mlflow Mlflow/mlflow — versions unspecified
Weakness classification (CWE)
References
- security@huntr.dev (Exploit, Third Party Advisory)
- security@huntr.dev (Patch)
Frequently asked questions
- What is CVE-2026-4137?
- CVE-2026-4137 is a high-severity vulnerability in Lfprojects Mlflow, classified under Creation of Temporary File With Insecure Permissions. CVSS score: 7.8/10. Published 2026-05-18.
- How severe is CVE-2026-4137?
- High severity. CVSS v3 base score is 7.8 out of 10.