What is CVE-2026-30911?

CVE-2026-30911 is a high-severity vulnerability in Apache Airflow, classified under Missing Authorization. CVSS score: 8.1/10. Published 2026-03-17.

How severe is CVE-2026-30911?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Apache Airflow

CVE-2026-30911

Apache Airflow versions 3.1.0 through 3.1.7 missing authorization vulnerability in the Execution API's Human-in-the-Loop (HITL) endpoints that allows any authenticated task instance to read, approve, or reject HITL workflows belonging to any other task instance. Users are recommended to upgrade to Apache Airflow 3.1.8 or later, which resolves this issue.

Vulnerability class: Broken Access Control

EPSS: 0.004 (33.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

Apache Airflow
Apache Software Foundation Airflow — versions 3.1.0

Weakness classification (CWE)

CWE-862 — Missing Authorization

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-2026-30911?: CVE-2026-30911 is a high-severity vulnerability in Apache Airflow, classified under Missing Authorization. CVSS score: 8.1/10. Published 2026-03-17.
How severe is CVE-2026-30911?: High severity. CVSS v3 base score is 8.1 out of 10.