Vulnerability in Apache Airflow
CVE-2021-26559
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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.028 (86.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000
Affected products
- Apache Airflow — versions 2.0.0
- Apache Software Foundation Airflow — versions Apache Airflow 2.0.0
Weakness classification (CWE)
References
- lists.apache.org/thread.html/r3b3787700279ec361308cbefb7c2cce2acb26891a12ce864e… (Mailing List, Vendor Advisory)
- www.openwall.com/lists/oss-security/2021/02/17/1 (mailing-list, Mailing List, Third Party Advisory)
- lists.apache.org/thread.html/rd142565996d7ee847b9c14b8a9921dcf80bc6bc160e3d9dca… (mailing-list)
Frequently asked questions
- What is CVE-2021-26559?
- CVE-2021-26559 is a medium-severity vulnerability in Apache Airflow, classified under Improper Access Control. CVSS score: 6.5/10. Published 2021-02-17.
- How severe is CVE-2021-26559?
- Medium severity. CVSS v3 base score is 6.5 out of 10.