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

Project Subscriptions

Vendors Products
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-46r5-x6jq-v8g6 MLflow is vulnerable to an authorization bypass affecting the AJAX endpoint
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 09 Apr 2026 14:15:00 +0000


Wed, 08 Apr 2026 20:15:00 +0000

Type Values Removed Values Added
First Time appeared Mlflow
Mlflow mlflow
Vendors & Products Mlflow
Mlflow mlflow

Tue, 07 Apr 2026 15:15:00 +0000

Type Values Removed Values Added
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
Title Authorization Bypass in MLflow AJAX Endpoint
Weaknesses CWE-862
References
Metrics cvssV4_0

{'score': 5.3, 'vector': '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'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: CERT-PL

Published:

Updated: 2026-04-09T13:30:36.155Z

Reserved: 2026-03-24T13:13:32.905Z

Link: CVE-2026-33866

cve-icon Vulnrichment

Updated: 2026-04-07T13:05:41.111Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-04-07T13:16:47.000

Modified: 2026-04-09T14:16:30.903

Link: CVE-2026-33866

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-08T19:49:31Z

Weaknesses