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.
History

Tue, 02 Jun 2026 19:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*

Tue, 02 Jun 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 01 Jun 2026 12:30:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache airflow
Vendors & Products Apache
Apache airflow

Mon, 01 Jun 2026 11:30:00 +0000

Type Values Removed Values Added
References

Mon, 01 Jun 2026 09:15:00 +0000

Type Values Removed Values Added
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.
Title Apache Airflow: Open Redirect Bypass Vulnerability
Weaknesses CWE-601
References

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published: 2026-06-01T07:55:04.647Z

Updated: 2026-06-02T16:42:33.748Z

Reserved: 2026-04-16T01:04:38.929Z

Link: CVE-2026-40961

cve-icon Vulnrichment

Updated: 2026-06-02T16:27:47.209Z

cve-icon NVD

Status : Analyzed

Published: 2026-06-01T09:16:18.010

Modified: 2026-06-02T18:49:33.580

Link: CVE-2026-40961

cve-icon Redhat

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