Cyber Resilience

CVE-2026-40961

High

Published: 01 June 2026

Published
01 June 2026
Modified
02 June 2026
KEV Added
—
Patch
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CVSS Score v3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
EPSS Score 0.0063 45.2th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-40961 is a high-severity Open Redirect (CWE-601) vulnerability in Apache Airflow. Its CVSS base score is 7.2 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 45.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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…

more

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.

CWE(s)
CWE-601

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

Open redirect in public-facing Airflow login flow directly enables exploitation of a web application vulnerability for malicious redirection.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v18.1

CVEs Like This One

CVE-2026-42359Same product: Apache Airflow
CVE-2026-41084Same product: Apache Airflow
CVE-2025-66236Same product: Apache Airflow
CVE-2026-32228Same product: Apache Airflow
CVE-2026-30911Same product: Apache Airflow
CVE-2025-68438Same product: Apache Airflow
CVE-2026-33858Same product: Apache Airflow
CVE-2026-42252Same product: Apache Airflow
CVE-2024-56373Same product: Apache Airflow
CVE-2026-25917Same product: Apache Airflow

Affected Assets

apache
airflow
3.0.0 — 3.2.2

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

AT-2 Literacy Training and Awareness
addresses: CWE-601

Security awareness includes verifying URLs and avoiding untrusted redirects that lead to malicious sites.

SI-10 Information Input Validation
addresses: CWE-601

Validates redirect targets and URLs to ensure they conform to allowed destinations.

References