Open redirect in Apache Airflow - CVE-2026-40961
Published: June 4, 2026
Vulnerability identifier: #VU133375
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-40961
CWE-ID: CWE-601
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Apache Foundation
Affected software:
Apache Airflow
Apache Airflow
Detailed vulnerability description
The vulnerability allows a remote user to redirect users to an attacker-controlled origin.
The vulnerability exists due to improper input validation in the login redirect route when handling crafted login URLs with a manipulated next= parameter. A remote user can craft a URL that bypasses the is_safe_url check to redirect users to an attacker-controlled origin.
How to mitigate CVE-2026-40961
Install security update from vendor's website.