What is CVE-2026-26929?

CVE-2026-26929 is a medium-severity vulnerability in Apache Airflow, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 6.5/10. Published 2026-03-17.

How severe is CVE-2026-26929?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Apache Airflow

CVE-2026-26929

Apache Airflow versions 3.0.0 through 3.1.7 FastAPI DagVersion listing API does not apply per-DAG authorization filtering when the request is made with dag_id set to "~" (wildcard for all DAGs). As a result, version metadata of DAGs that the requester is not authorized to access is returned. Users are recommended to upgrade to Apache Airflow 3.1.8 or later, which resolves this issue.

EPSS: 0.004 (33.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Apache Airflow
Apache Software Foundation Airflow — versions 3.0.0

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

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

Frequently asked questions

What is CVE-2026-26929?: CVE-2026-26929 is a medium-severity vulnerability in Apache Airflow, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 6.5/10. Published 2026-03-17.
How severe is CVE-2026-26929?: Medium severity. CVSS v3 base score is 6.5 out of 10.