CVE-2026-33866

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

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
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

Configurations

Configuration 1 (hide)

cpe:2.3:a:lfprojects:mlflow:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-04-07 13:16

Updated : 2026-06-17 10:38

NVD link : CVE-2026-33866

Mitre link : CVE-2026-33866

CVE.ORG link : CVE-2026-33866

JSON object : View

Products Affected

lfprojects

mlflow

CWE

CWE-862

Missing Authorization

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