Apache Airflow SFTP provider: Path traversal in SFTPHook.retrieve_directory
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | apache-airflow-providers-sftp | < 5.8.1 | 5.8.1 |
References
- http://www.openwall.com/lists/oss-security/2026/06/16/3
- https://lists.apache.org/thread/7f4b284oh44c1n95oq8mh1qc7y1lr9dx
- https://github.com/apache/airflow/pull/67985
- https://github.com/advisories/GHSA-qf38-jq28-3ccq
- https://nvd.nist.gov/vuln/detail/CVE-2026-50203
- https://github.com/apache/airflow
- https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow-providers-sftp/PYSEC-2026-218.yaml
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N- Weakness (CWE)
CWE-22- Platform
- Python (PyPI)
- Package
apache-airflow-providers-sftp- Disclosed
- 17.06.2026
- Updated
- 11.10.2026 15:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-218 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-qf38-jq28-3ccq - CC BY 4.0
Vulnerability history: apache-airflow-providers-sftp
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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