What is CVE-2026-40690?

CVE-2026-40690 is a medium-severity vulnerability in Apache Airflow, classified under CWE-1220. CVSS score: 4.3/10. Published 2026-04-24.

How severe is CVE-2026-40690?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Apache Airflow

CVE-2026-40690

The asset dependency graph did not restrict nodes by the viewer's DAG read permissions: a user with read access to at least one DAG could browse the asset graph for any other asset in the deployment and learn the existence and names of DAG…

EPSS: 0.004 (27.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Apache Airflow
Apache Software Foundation Airflow — versions 0

Weakness classification (CWE)

CWE-1220

References

security@apache.org (Patch, patch, Issue Tracking)
security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-40690?: CVE-2026-40690 is a medium-severity vulnerability in Apache Airflow, classified under CWE-1220. CVSS score: 4.3/10. Published 2026-04-24.
How severe is CVE-2026-40690?: Medium severity. CVSS v3 base score is 4.3 out of 10.