{"id":"CVE-2026-50203","aliases":["GHSA-qf38-jq28-3ccq","PYSEC-2026-218"],"title":"Apache Airflow SFTP provider: Path traversal in SFTPHook.retrieve_directory","summary":"Apache Airflow SFTP provider: Path traversal in SFTPHook.retrieve_directory","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","vendor":"apache-airflow-providers-sftp","product":"apache-airflow-providers-sftp","ecosystem":"pip","affected":["apache-airflow-providers-sftp < 5.8.1"],"patched":["apache-airflow-providers-sftp 5.8.1"],"published":"2026-06-17","updated":"2026-09-10","sourceUpdated":"2026-09-10T03:50:50.316659856Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-qf38-jq28-3ccq","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50203"},{"url":"https://github.com/apache/airflow/pull/67985"},{"url":"https://github.com/apache/airflow"},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow-providers-sftp/PYSEC-2026-218.yaml"},{"url":"https://lists.apache.org/thread/7f4b284oh44c1n95oq8mh1qc7y1lr9dx"},{"url":"http://www.openwall.com/lists/oss-security/2026/06/16/3"},{"url":"https://github.com/advisories/GHSA-qf38-jq28-3ccq"}],"tags":["osv","pip","ghsa"],"epss":0.00626,"epssPercentile":0.48644,"cwe":["CWE-22"],"ingestedAt":"2026-06-29T14:31:47.209Z","slug":"CVE-2026-50203","body":"## Overview\n\nA 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.\n\n## Affected packages\n\n- `apache-airflow-providers-sftp < 5.8.1`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `apache-airflow-providers-sftp 5.8.1`","depth":"midnight","depthScore":50,"depthScoreParts":{"impact":50.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}