CVE-2021-38540
Apache Airflow: Variable Import endpoint missed authentication check
CRITICAL 9.8
At a glance
- Source
- NVD
- EPSS
- EPSS 80.94 % · percentile 100 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- apache
- NVD status
- Modified
Description
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, information disclosure or remote code execution. This issue affects Apache Airflow >=2.0.0, <2.1.3.
Weaknesses (CWE)
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | HIGH 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P | NVD · nvd@nist.gov (Primary) |
Advisories
- GHSA-h88f-r7cw-8fv3 — Missing Authentication for Critical Function in Apache Airflow
- PYSEC-2021-326 — 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/modi
European references
- ENISA EUVD · EUVD-2021-0016
- GCVE · GCVE-0-2021-38540
Affected configurations (NVD CPE)
cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*≥ 2.0.0 < 2.1.3
Affected products
| Product | Versions |
|---|---|
| Apache Software Foundation · Apache Airflow | affected Apache Airflow < 2.1.3 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |