Path Traversal in Apache Apache-Airflow-Providers-Sftp
CVE-2026-50203
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.009 (57.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.009 · change: +0.003
Affected products
Weakness classification (CWE)
References
- github.com/apache/airflow/pull/67985 (Patch, patch, Issue Tracking)
- lists.apache.org/thread/7f4b284oh44c1n95oq8mh1qc7y1lr9dx (vendor-advisory, Mailing List, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2026-50203?
- CVE-2026-50203 is a critical-severity vulnerability in Apache Apache-Airflow-Providers-Sftp, classified under Path Traversal. CVSS score: 9.1/10. Published 2026-06-17.
- How severe is CVE-2026-50203?
- Critical severity. CVSS v3 base score is 9.1 out of 10.