All vulnerabilities

Servers and applications

CVE-2021-26697

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.

Severity
Medium 5.3
Published
17 Feb 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
Apache AirflowServers and applications · cpe:a:apache:airflow
  • Version 2.0.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-26697
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-26697