CVE-2026-40961

Summary

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.

Affected Software

Weaknesses

• CWE-601: CWE-601: URL Redirection to Untrusted Site (Open Redirect)

ADP Enrichment

CVE Program Container

Additional References

• http://www.openwall.com/lists/oss-security/2026/05/31/2

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

References

• https://github.com/apache/airflow/pull/65557
• https://lists.apache.org/thread/qmt8ksh7gty6b8hr9w294t94j36jdv1q

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