Privilege escalation in Apache Software Foundation Airflow
CVE-2021-38540
The variable import endpoint was not protected by authentication in Airflow >=2.0.0, <2.1.3. This allowed unauthenticated users to hit that endpoint to add/modify Airflow variables used in DAGs, potentially resulting in a denial of service…
Vulnerability class: Privilege Escalation
EPSS: 0.918 (99.7th percentile) — read the EPSS interpretation.
Affected products
- Apache Software Foundation Airflow — versions Apache Airflow
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.apache.org/thread.html/rb34c3dd1a815456355217eef34060789f771b6f77c3a3dec7… (x_refsource_MISC)
- [announce] 20210909 CVE-2021-38540: Apache Airflow: Variable Import endpoint missed authentication check (mailing-list, x_refsource_MLIST)
Frequently asked questions
- What is CVE-2021-38540?
- CVE-2021-38540 is a vulnerability in Apache Software Foundation Airflow, classified under Improper Privilege Management. Published 2021-09-09.
- Is CVE-2021-38540 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.