CVE-2026-40961

7.2 HIGH

A bug in the login redirect route in Apache Airflow allowed authenticated users to craft URLs that bypassed the `is_safe_url` check, enab...

Published: 2026-06-01 · Last updated: 2026-06-02

Severity and scoring

CVSS: 7.2 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
CWE: CWE-601

Affected products

Vendor	Product
apache	airflow

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.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-40961
[Patch]https://github.com/apache/airflow/pull/65557
[Vendor advisory]https://lists.apache.org/thread/qmt8ksh7gty6b8hr9w294t94j36jdv1q
[Other]http://www.openwall.com/lists/oss-security/2026/05/31/2

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