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Date: Wed, 17 Feb 2021 14:09:11 +0000
From: Kaxil Naik <>
Subject: CVE-2021-26697: Apache Airflow: Lineage API endpoint for Experimental
 API missed authentication check


The lineage endpoint of the deprecated Experimental API was not
protected by authentication in Airflow 2.0.0. This allowed
unauthenticated users to hit that endpoint.

This is low-severity CVE as the attacker needs to be aware of certain
parameters to pass to that endpoint and even after can just get some
metadata about a DAG and a Task.

This issue affects Apache Airflow 2.0.0.


Apache Airflow would like to thank Ian Carroll for reporting this issue.


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