Login Request a demo
High severity · published Jun 1, 2026
CVE-2026-40961
Apache Airflow: Open Redirect Bypass Vulnerability
7.2
CVSS
0.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 51% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AA
Apache Airflow · Apache Software Foundation
3.0.0 before 3.2.2 · source: vendor
AI
Airflow · Apache
3.0.0 before 3.2.2 · source: NVD
Affected product
AA
Apache Airflow
Apache Software Foundation
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-40961
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-40961
Issue Tracking
https://github.com/apache/airflow/pull/65557
Mailing List
https://lists.apache.org/thread/qmt8ksh7gty6b8hr9w294t94j36jdv1q
Mailing List
http://www.openwall.com/lists/oss-security/2026/05/31/2
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