CVE-2026-40961

highCVSS 7.2covered by 1 sourcefirst seen 2026-06-01

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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Exploitation outlook

Low exploitation risk0.65% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 47% of all EPSS-scored CVEs.

Advisory coverage (1)

highGHSA-6hcw-qqr8-pjj8: Apache Airflow: Authenticated users can bypass the `is_safe_url` checkghsa · 2026-06-01

External references

NVD record for CVE-2026-40961

CVE.org record

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