CVE-2026-40961
High
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.
SeverityHigh
CVSS7.2
Exploit probability—
Product
Apache Airflow
PublishedJun 1, 2026
First seenJun 1, 2026
Weakness typeCWE-601Open redirect
How to fix
Update
- apache airflow3.2.2 or later
- apache-airflow3.2.2 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache airflow | 3.0.0 ≤ v < 3.2.2 | 3.2.2 |
| apache-airflowPyPI | v < 3.2.2, 3.0.0b3 ≤ v < 3.2.2 | 3.2.2 |
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