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.

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

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

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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

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cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-06-01T09:52:23.058Z

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

Link: CVE-2026-40961

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

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

Modified: 2026-06-01T11:16:25.003

Link: CVE-2026-40961

cve-icon Redhat

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cve-icon OpenCVE Enrichment

Updated: 2026-06-01T10:30:26Z

Weaknesses