CVE-2020-13927

Published Nov 10, 2020 CVSS 3.1 · 9.8 Critical EPSS 99.8% KEV · Listed
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

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-hhx9-p69v-cx2j Authentication bypass in Apache Airflow

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Oct 21, 2025, 11:35 PM
Reserved
Jun 8, 2020, 12:00 AM
Status
Analyzed
Published
Nov 10, 2020, 4:15 PM
Modified
Jun 17, 2026, 2:53 AM