CVE-2021-38540

Critical

Description

The variable import endpoint was not protected by authentication in Airflow >=2.0.0, <2.1.3. This allowed unauthenticated users to hit that endpoint to add/modify Airflow variables used in DAGs, potentially resulting in a denial of service, information disclosure or remote code execution. This issue affects Apache Airflow >=2.0.0, <2.1.3.

SeverityCritical
CVSS9.8
Exploit probability—
ProductApache Airflow
PublishedSep 9, 2021
First seenSep 9, 2021

How to fix

Update
  • apache airflow2.1.3 or later
  • apache-airflow2.1.3 or later

Affected products

ProductAffected versionsFixed in
apache airflow2.0.0 ≤ v < 2.1.32.1.3
apache-airflowPyPI2.0.0 ≤ v < 2.1.32.1.3

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