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CVE-2020-13927PYSEC-2020-18BIT-AIRFLOW-2020-13927GHSA-HHX9-P69V-CX2J

The previous default setting for Airflow's Experimental API was to allow all API requests without authentication, but this poses security ri

Published
Last modified
published
Listed in CISA KEV
Fix
Fixed in 1.10.11
None on Exploit-DB, Metasploit or GitHub

Summary

Apache Airflow's Experimental API, in versions before the default change, accepted requests without authentication, which could let anyone who can reach the API access or control workflows and data it exposes. Existing installations that keep the old default configuration remain exposed until administrators explicitly set the API authentication backend to deny all requests.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original 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

Timeline

  1. CVE published
  2. Added to CISA KEV

    CISA has evidence of exploitation in the wild

  3. CISA remediation deadline

    Due date for US federal agencies to patch

  4. Record last updated
  5. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • n/a Apache Airflow

    Apache Airflow <1.10.11

  • apache-airflowPyPI

    fixed in 1.10.11

  • apache-airflowPyPI

    fixed in 1.10.11

References 3

lists.apache.org

packetstormsecurity.com