PT-2026-30821 · Mlflow · Mlflow

Sławomir Zakrzewski · Published 2026-04-07 · Updated 2026-04-07 · CVE-2026-33866

NVD

CVSS v4.0

5.3

Medium

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

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

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-33866

Affected Products

Mlflow

References · 3

• https://github.com/mlflow/mlflow/pull/21708 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-33866 · Security Note
• https://cert.pl/en/posts/2026/04/CVE-2026-33865 · Note