CVE-2026-40961

HIGH7.2

Apache Airflow: Open Redirect Bypass Vulnerability

Published Jun 1, 2026

Modified 2 months ago

Details

A bug in the login redirect route in Apache Airflow allowed authenticated users to craft URLs that bypassed the is_safe_url check, enabling redirection from a trusted Airflow domain to an attacker-controlled origin. Users are advised to upgrade to apache-airflow 3.2.2 or later. As a defense-in-depth mitigation, deployment operators can place Airflow behind a reverse proxy that strips off-domain next= query parameters before they reach the login endpoint.

References

WEB

http://www.openwall.com/lists/oss-security/2026/05/31/2

FIX

https://github.com/apache/airflow/pull/65557

ADVISORY

https://lists.apache.org/thread/qmt8ksh7gty6b8hr9w294t94j36jdv1q

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-40961

CVSS Analysis

CVSS v3.1

7.2