Vulnerability Details CVE-2026-40961
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 24.7%
CVSS Severity
CVSS v3 Score 7.2
References
Products affected by CVE-2026-40961
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cpe:2.3:a:apache:airflow:3.0.0
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cpe:2.3:a:apache:airflow:3.0.1
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cpe:2.3:a:apache:airflow:3.0.2
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cpe:2.3:a:apache:airflow:3.0.3
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cpe:2.3:a:apache:airflow:3.0.4
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cpe:2.3:a:apache:airflow:3.0.5
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cpe:2.3:a:apache:airflow:3.0.6
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cpe:2.3:a:apache:airflow:3.1.0
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cpe:2.3:a:apache:airflow:3.1.1
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cpe:2.3:a:apache:airflow:3.1.2
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cpe:2.3:a:apache:airflow:3.1.3
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cpe:2.3:a:apache:airflow:3.1.4
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cpe:2.3:a:apache:airflow:3.1.5
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cpe:2.3:a:apache:airflow:3.1.6
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cpe:2.3:a:apache:airflow:3.1.7
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cpe:2.3:a:apache:airflow:3.1.8
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cpe:2.3:a:apache:airflow:3.2.0
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cpe:2.3:a:apache:airflow:3.2.1