https://seclists.org/oss-sec/2026/q2/751: CVE-2026-45426: Apache Airflow: Log server JWT authorization bypass via Python lstrip() character stripping allows cross-Dag log access

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-2026-45426?

The severity of CVE-2026-45426 is classified as low.

2

What versions of Apache Airflow are affected by CVE-2026-45426?

CVE-2026-45426 affects Apache Airflow versions before 3.2.2, starting from 3.0.0.

3

How do I fix CVE-2026-45426?

To fix CVE-2026-45426, update your Apache Airflow installation to version 3.2.2 or later.

4

What type of vulnerability is CVE-2026-45426?

CVE-2026-45426 is a log server JWT authorization bypass vulnerability.

5

What is required for exploiting CVE-2026-45426?

To exploit CVE-2026-45426, the attacker must already be an authenticated Airflow worker holding a valid Log-server JWT.

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