CVE-2021-35936
No Authentication on Logging Server
5.3
MEDIUM
CVSS 3.1
EPSS 4.0%
Description
If remote logging is not used, the worker (in the case of CeleryExecutor) or the scheduler (in the case of LocalExecutor) runs a Flask logging server and is listening on a specific port and also binds on 0.0.0.0 by default. This logging server had no authentication and allows reading log files of DAG jobs. This issue affects Apache Airflow < 2.1.2.
How to fix CVE-2021-35936
To remediate CVE-2021-35936, upgrade the affected package to a fixed version below.
- —upgrade to 2.1.2 or later
- —upgrade to 2.1.2 or later
- —upgrade to 2.1.2 or later
Is CVE-2021-35936 being exploited?
Low — EPSS is 4.0%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 2.1.2
- from 0, < 2.1.2
- from 0, < 2.1.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |