CVE-2021-26697
Improper Authentication in Apache Airflow
5.3
MEDIUM
CVSS 3.1
EPSS 2.5%
Description
The lineage endpoint of the deprecated Experimental API was not protected by authentication in Airflow 2.0.0. This allowed unauthenticated users to hit that endpoint. This is low-severity issue as the attacker needs to be aware of certain parameters to pass to that endpoint and even after can just get some metadata about a DAG and a Task. This issue affects Apache Airflow 2.0.0.
How to fix CVE-2021-26697
To remediate CVE-2021-26697, 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-2021-26697 being exploited?
Low — EPSS is 2.5%, 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:N/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 |