CVE-2026-50203: Apache Airflow SFTP provider: Path traversal in SFTPHook.retrieve_directory
A path traversal in the SFTP provider (SFTPHook.retrievedirectory / SFTPOperator(operation=get)) let a malicious or compromised remote SFTP server write files outside the configured local destination directory via crafted directory-entry names. No Airflow account is required — the attack surface is any deployment downloading directories from an untrusted SFTP server.
Published Jun 17, 2026 · Updated Jul 9, 2026
Affected packages
apache-airflow-providers-sftp
- Ecosystem
- PyPI
- Affected
- < 5.8.1
- Fixed in
- 5.8.1
- Check
pip show apache-airflow-providers-sftp
Advisory details
From the GitHub Advisory Database (CC BY 4.0).
A path traversal in the SFTP provider (SFTPHook.retrieve_directory / SFTPOperator(operation=get)) let a malicious or compromised remote SFTP server write files outside the configured local destination directory via crafted directory-entry names. No Airflow account is required — the attack surface is any deployment downloading directories from an untrusted SFTP server. Upgrade apache-airflow-providers-sftp to 5.8.1 or later.
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-50203
- https://github.com/apache/airflow/pull/67985
- https://lists.apache.org/thread/7f4b284oh44c1n95oq8mh1qc7y1lr9dx
- https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow-providers-sftp/PYSEC-2026-218.yaml
- https://github.com/advisories/GHSA-qf38-jq28-3ccq
How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology