CVE-2026-40961
Published:June 01, 2026
Updated:June 07, 2026
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 Packages
apache-airflow (CONDA):
Affected version(s) >=2.0.1 <3.2.2Fix Suggestion:
Update to version 3.2.2https://github.com/apache/airflow.git (GITHUB):
Affected version(s) >=airbnb_prod.1.6.1.0 <3.2.2Fix Suggestion:
Update to version 3.2.2apache-airflow (PYTHON):
Affected version(s) >=1.8.1 <3.2.2Fix Suggestion:
Update to version 3.2.2Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
4.8
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
ACTIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.6
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
URL Redirection to Untrusted Site ('Open Redirect')
EPSS
Base Score:
0.11