CVE-2026-40961
Apache Airflow: Open Redirect Bypass Vulnerability
- State
- Published
- Severity
- 7.2 High
- Published
- Jun 1, 2026
- Updated
- Jun 2, 2026
- Reserved
- Apr 16, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.2 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N | CISA-ADP |
Weaknesses
- CWE-601 URL Redirection to Untrusted Site (Open Redirect)
Affected Products
| Product | Versions |
|---|---|
Apache AirflowApache Software Foundation |
|
References
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