Improper certificate validation in Apache Airflow
Priority LOW 35CWE-295Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-295.
Summary
The LDAP auth backend (airflow.contrib.auth.backends.ldap_auth) prior to Apache Airflow 1.10.1 was misconfigured and contained improper checking of exceptions which disabled server certificate checking.
Why it matters now
EPSS 0.01016 63rd percentileScored 2026-11-07
Fix Fixed apache-airflow (PyPI): 1.10.1
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apache | Apache Airflow | Apache Airflow <= 1.10.0 | — | No fix listed | CNA |
| — | apache-airflow (PyPI) | before 1.10.1 | 1.10.1 | Patch available | GHSA-77rc-x84q-pv4f |
- Apache Airflow VendorApache Affected Apache Airflow <= 1.10.0 Fixed in — No fix listed CNA
- apache-airflow (PyPI) Vendor— Affected before 1.10.1 Fixed in 1.10.1 Patch available GHSA-77rc-x84q-pv4f
Remediation
- Fix · GHSA-77rc-x84q-pv4f apache-airflow (PyPI) Fixed in 1.10.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2018-20245
- 2026-10-03 Alias added: GHSA-77rc-x84q-pv4f
References
Advisory 2
Other 7
- https://lists.apache.org/thread.html/b549c7573b342a6e457e5a3225c33054244343927bbfb2a4cdc4cf73%40%3Cdev.airflow.apache.org%3E
- https://github.com/apache/airflow/commit/28abf87bd173cc4cedc57f553118470e5745a968
- https://github.com/apache/airflow/commit/66d0d05ea0802aec407e0ef5435a962080db0926
- https://github.com/apache/airflow/commit/d8d0e8c59203f793f81d47d5adb1362df0b5d8d1
- https://github.com/apache/airflow
- https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2019-143.yaml
- https://lists.apache.org/thread.html/b549c7573b342a6e457e5a3225c33054244343927bbfb2a4cdc4cf73@%3Cdev.airflow.apache.org%3E
More Apache Airflow vulnerabilities
- TI-2020-10905 Missing authentication in Apache Airflow KEVCVSS 3.1CRITICAL 9.8
- TI-2020-09638 OS command injection in Apache Airflow KEVCVSS 3.1HIGH 8.8
- TI-2022-19017 Apache Airflow <2.4.0 has an RCE in a bash example CVSS 3.1HIGH 8.8
- TI-2021-16140 Apache Airflow: Variable Import endpoint missed authentication check CVSS 3.1CRITICAL 9.8
- TI-2022-08169 Apache Airflow: RCE in example DAGs CVSS 3.1HIGH 8.8
- TI-2024-26776 Apache Airflow: DAG Author Code Execution possibility in airflow-scheduler CVSS 3.1HIGH 8.8
Sources
- CVE-2018-20245 · CVE Program
- CVE-2018-20245 · NVD
- FIRST EPSS
- GHSA-77rc-x84q-pv4f · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences