CVE-2026-40961 — Apache Airflow: Open Redirect Bypass Vulnerability
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 …
Published: 2026-06-01 · CVSS: 7.2 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7