https://seclists.org/oss-sec/2026/q2/746: CVE-2026-42252: Apache Airflow: BashOperator Jinja2 injection via dag_run.conf — low-privilege user pattern

Published May 31, 2026
·
Updated

Affected Software

1 affected component
pypi/apache-airflow>=3.0.0<3.2.2
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Frequently Asked Questions

1

What is the severity of CVE-2026-42252?

CVE-2026-42252 is classified as having a low severity.

2

Which versions of Apache Airflow are affected by CVE-2026-42252?

CVE-2026-42252 affects Apache Airflow versions 3.0.0 before 3.2.2.

3

How do I fix CVE-2026-42252?

To mitigate CVE-2026-42252, upgrade Apache Airflow to version 3.2.2 or later.

4

What type of injection does CVE-2026-42252 involve?

CVE-2026-42252 involves a Jinja2 injection via the BashOperator in Apache Airflow.

5

What is the primary risk associated with CVE-2026-42252?

The primary risk of CVE-2026-42252 is potential command execution via improperly sanitized user input.

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