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Findings

CVE-2020-13927

Apache Airflow's Experimental API Authentication Bypass

Published Nov 10, 2020 · updated Jun 16, 2026 · apache airflow

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 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

Timeline

Detection, updates, and resolution for this record.

  1. Nov 10, 2020 · Catalog

    Detected

    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 exi

  2. Jan 18, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Jul 18, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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 exi

Required action

Apply updates per vendor instructions.

CISA due date Jul 18, 2022

Affected

  • cpe apache/airflowversion unspecified
  • vendor Apache Airflow's Experimental APIversion unspecified

Sources

  • CISA KEVCVE-2020-13927

    The previous default setting for Airflow's Experimental API was to allow all API requests without authentication.

    cisa.gov
  • CVE.orgCVE-2020-13927

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2020-13927

    30-day exploitation probability 99.8%

    first.org
  • Exploit Database49927

    Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • Metasploit Modulesexploit_linux/http/apache_airflow_dag_rce

    Public module reference (excellent). Module source is not copied into this catalog.

    rapid7.com
  • NIST NVDCVE-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 http

    nvd.nist.gov
  • Packet Storm Securityhttp://packetstormsecurity.com/files/162908/Apache-Airflow-1.10.10-Remote-Code-Execution.html

    Packet Storm link already published on the finding.

    packetstormsecurity.com
  • Packet Storm Securityhttp://packetstormsecurity.com/files/174764/Apache-Airflow-1.10.10-Remote-Code-Execution.html

    Packet Storm link already published on the finding.

    packetstormsecurity.com

References

CVE-2020-13927 · ZeroDay Findings