CVE-2026-40961 | A bug in the login redirect route in Apache Airflow allowed … | CVSS 7.2 HIGH

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.

Metadata

CVE ID: CVE-2026-40961
State: PUBLISHED
Assigner: apache
Reserved: 2026-04-16 01:04 UTC
Published: 2026-06-01 07:55 UTC
Last updated: 2026-06-02 16:42 UTC
Primary CWE: CWE-601
CWE-601: URL Redirection to Untrusted Site (Open Redirect)
Vendor / Product: Apache Software Foundation / Apache Airflow
Sources: cve.org · NVD

Severity & Metrics

7.2 HIGH CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

SSVC — CISA Coordinator

Exploitation: none
Automatable: yes
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
Apache Software Foundation	Apache Airflow	—	3.0.0 < 3.2.2

Weakness (CWE)

CWE	Source	Description
CWE-601	cna	CWE-601: URL Redirection to Untrusted Site (Open Redirect)

CVSS scores (1)

Score	Severity	Version	Source	Vector
7.2	HIGH	3.1	adp	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

References (2)