CVE-2026-40961: Apache Airflow: Open Redirect Bypass Vulnerability
This Apache advisory covers CVE-2026-40961 in Apache Airflow.
- CVE-2026-40961
Key facts
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N· base score 7.2, scored by CISA-ADPAttack vector: network. Attack complexity: low. Privileges required: none. User interaction: none. Scope: changed. Confidentiality impact: low. Integrity impact: low. Availability impact: none.- Weakness
- CWE-601: URL Redirection to Untrusted Site (Open Redirect)
- CISA SSVC
- Exploitation: none observed. Automatable: yes. Technical impact: partial. CISA, .
- CISA KEV
- Not listed (catalogue checked )
- Affected
- Apache Airflow 3.0.0 before 3.2.2
- Fixed in
- 3.2.2
- Source published
- Source revised
- Listed by VulniPulse
Compiled by VulniPulse from the linked sources. How records are collected and checked.
Affected products & platforms
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.
Text from the source record.
- Apache Airflow 3.0.0 before 3.2.2
Official advisory · medium-confidence parse· fetched ·verify at source
How to fix CVE-2026-40961
Upgrade to a fixed release named by Apache:
- 3.2.2
Vendor guidance
- Users are advised to upgrade to `apache-airflow` 3.2.2 or later.
Support dates for the fixed release lines
- Apache Airflow 3.2: support ended
More Apache Software Foundation advisories
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Apache Software Foundation advisories, June 2026All Apache Software Foundation advisories
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