CVE-2021-26559
Improper Access Control in Apache Airflow
6.5
MEDIUM
CVSS 3.1
EPSS 0.56%
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.
How to fix CVE-2021-26559
To remediate CVE-2021-26559, upgrade the affected package to a fixed version below.
- —upgrade to 2.0.1 or later
- —upgrade to 2.0.1rc1 or later
- —upgrade to 2.0.1 or later
Is CVE-2021-26559 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- >= 2.0.0, < 2.0.1
- >= 2.0.0, < 2.0.1rc1
- from 0, < 2.0.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |