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    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

    Published:Apr 7, 2026
    Last Modified:Apr 20, 2026
    EPS:Apr 7, 2026
    EPSS Score:0.00033
    CVSS Score:4.3

    Affected Products

    Vendor
    Lfprojects
    Product
    Mlflow
    Vendor
    Mlflow
    Product
    Mlflow

    Exploits

    https://afine.com/blogs/attacking-mlflow-how-ml-artifacts-become-attack-vectors

    Common Weakness Enumeration

    CWE-862 Missing Authorization

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-665 Exploitation of Thunderbolt Protection Flaws

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High