CVE-2026-40961

Apache Airflow: Open Redirect Bypass Vulnerability

CVSS 7.2 HIGHEPSS 0.6%CWE-601

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.2EPSS 0.6%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

01 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Affected products

Apache Software Foundation · Apache Airflow

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References

https://github.com/apache/airflow/pull/65557 https://lists.apache.org/thread/qmt8ksh7gty6b8hr9w294t94j36jdv1q http://www.openwall.com/lists/oss-security/2026/05/31/2