apache/airflow · Security
Apache Airflow SFTP provider: Path traversal in SFTPHook.retrieve_directory
- GHSA ID
- GHSA-qf38-jq28-3ccq
- CVE ID
- CVE-2026-50203
- Severity
- critical
- Published
- Updated
- CVSS
- 9.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- CVSS v3
- 9.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Description
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.
CWEs
- CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-50203 ↗
- https://github.com/apache/airflow/pull/67985 ↗
- https://lists.apache.org/thread/7f4b284oh44c1n95oq8mh1qc7y1lr9dx ↗
- http://www.openwall.com/lists/oss-security/2026/06/16/3 ↗
- 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 ↗