VULNERABILITY INTELLIGENCE
CVE-2021-26559
CVSS score6.5 MEDIUM
EPSS probability2.80%
CISA KEVNot currently listed
Published2021-02-17
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Description
Improper Access Control on Configurations Endpoint for the Stable API of Apache Airflow allows users with Viewer or User role to get Airflow Configurations including sensitive information even when `[webserver] expose_config` is set to `False` in `airflow.cfg`. This allowed a privilege escalation attack. This issue affects Apache Airflow 2.0.0.
Weakness classification
- security@apache.org: CWE-284
- nvd@nist.gov: NVD-CWE-Other
Primary references
- security@apache.org — Mailing List, Third Party Advisory
- security@apache.org — Mailing List, Vendor Advisory
- security@apache.org
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108