CVSS 4.0
5.3 mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:NCVE-2026-33866
Medium (5.3) in lfprojects mlflow. EPSS 0.4% chance of exploitation in the next 30 days. Fixed in mlflow 3.11.0rc0.
MLflow is vulnerable to an authorization bypass affecting the AJAX endpoint used to download saved model artifacts. Due to missing access‑control validation, a user without permissions to a given experiment can directly query this endpoint and retrieve model artifacts they are not authorized to access.
This issue affects MLflow version through 3.10.1
Severity
CVSS 3.1
4.3 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 29% of CVEs (scores of 2026-10-31)
- CWE
- CWE-862
- Published
- Modified
- Record from
- the NVD, synced
Affected
- lfprojects:mlflow
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-46r5-x6jq-v8g6 | PyPI | mlflow | <3.11.0rc0 | 3.11.0rc0 |
| PYSEC-2026-94 | PyPI | mlflow | <3.11.0rc0 | 3.11.0rc0 |