CVEvulnerability
CVE-2026-33866
5.3 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-04-07
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 5.3 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 4.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- Weaknesses
- CWE-862
Description
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
Affected configurations
• lfprojects mlflow (<= 3.10.1)
Related
Weakness · CWE (1)
- CWE-862 Missing Authorization weakness
References
- https://afine.com/blogs/attacking-mlflow-how-ml-artifacts-become-attack-vectors Exploit, Third Party Advisory
- https://cert.pl/en/posts/2026/04/CVE-2026-33865/ Third Party Advisory
- https://github.com/mlflow/mlflow/pull/21708 Issue Tracking, Patch