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Date: Fri, 02 Sep 2022 03:55:07 +0000
From: Jedidiah Cunningham <>
Subject: CVE-2022-38170: Apache Airflow: Overly permissive umask for


In Apache Airflow prior to 2.3.4, an insecure umask was configured for numerous Airflow components when running with the  `--deamon` flag which could result in a race condition giving world-writable files in the Airflow home directory and allowing local users to expose arbitrary file contents via the webserver.


Run without the `--deamon` flag via a process supervisor instead (systemd, runit, etc.).


The Apache Airflow PMC would like to thank Harry Sintonen for reporting this issue.

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