Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache Airflow | 3.0.0 – < 3.2.2 | 3.2.2 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | apache-airflow | >= 3.0.0b3, < 3.2.2 | 3.2.2 | GHSA-6hcw-qqr8-pjj8 |
| PyPI | apache-airflow | < 3.2.2 | 3.2.2 | PYSEC-2026-2345 |
Advisories 1
- WID-SEC-2026-1761 Apache Airflow: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 1, 2026