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    CVE-2020-13927

    The previous default setting for Airflow's Experimental API was to allow all API requests without authentication, but this poses security risks to users who miss this fact. From Airflow 1.10.11 the default has been changed to deny all requests by default and is documented at https://airflow.apache.org/docs/1.10.11/security.html#api-authentication. Note this change fixes it for new installs but existing users need to change their config to default `[api]auth_backend = airflow.api.auth.backend.deny_all` as mentioned in the Updating Guide: https://github.com/apache/airflow/blob/1.10.11/UPDATING.md#experimental-api-will-deny-all-request-by-default

    Published:Nov 10, 2020
    Last Modified:Oct 23, 2025
    EPS:Nov 10, 2020
    EPSS Score:0.941
    CVSS Score:9.8

    CISA Notification

    Description

    The previous default setting for Airflow's Experimental API was to allow all API requests without authentication, but this poses security risks to users who miss this fact. From Airflow 1.10.11 the default has been changed to deny all requests by default and is documented at https://airflow.apache.org/docs/1.10.11/security.html#api-authentication. Note this change fixes it for new installs but existing users need to change their config to default `[api]auth_backend = airflow.api.auth.backend.deny_all` as mentioned in the Updating Guide: https://github.com/apache/airflow/blob/1.10.11/UPDATING.md#experimental-api-will-deny-all-request-by-default

    Required Action:

    Apply updates per vendor instructions.

    Notes:

    No extra notes provided.

    Due Date
    Jul 18, 2022
    1516 days ago
    Alert Date
    Jan 18, 2022
    1697 days ago

    Affected Products

    Vendor
    Apache
    Product
    Airflow

    Exploits

    http://packetstormsecurity.com/files/162908/Apache-Airflow-1.10.10-Remote-Code-Execution.htmlhttp://packetstormsecurity.com/files/174764/Apache-Airflow-1.10.10-Remote-Code-Execution.htmlhttp://packetstormsecurity.com/files/162908/Apache-Airflow-1.10.10-Remote-Code-Execution.htmlhttp://packetstormsecurity.com/files/174764/Apache-Airflow-1.10.10-Remote-Code-Execution.htmlhttps://www.exploit-db.com/exploits/49927

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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