{"id":"PYSEC-2026-238","details":"The Apache Airflow FTP provider's `FTPSHook.get_conn()` created an `ftplib.FTP_TLS` connection but never called `prot_p()`, so although the control channel was TLS-protected the data channel was transmitted in cleartext. Any deployment using `FTPSHook` or `FTPSFileTransmitOperator` to move files over FTPS exposed file contents and credentials-in-transit to a network attacker able to observe the data connection. Upgrade apache-airflow-providers-ftp to `3.15.1` or later, which issues `PROT P` to encrypt the data channel.","aliases":["CVE-2026-49486"],"modified":"2026-06-27T11:15:05.116183630Z","published":"2026-06-26T08:16:23.830Z","references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/06/26/1"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/gwnsxlt9hfj5pc543wxtogbnjdn04xj1"},{"type":"FIX","url":"https://github.com/apache/airflow/pull/67946"}],"affected":[{"package":{"name":"apache-airflow-providers-ftp","ecosystem":"PyPI","purl":"pkg:pypi/apache-airflow-providers-ftp"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.15.1"}]}],"versions":["1.0.0","1.0.0b1","1.0.0b2","1.0.0rc1","1.0.1","1.0.1rc1","1.1.0","1.1.0rc1","2.0.0","2.0.0rc1","2.0.0rc2","2.0.1","2.0.1rc1","2.1.0","2.1.0rc1","2.1.1","2.1.1rc1","2.1.2","2.1.2rc1","3.0.0","3.0.0rc1","3.0.0rc2","3.1.0","3.1.0rc1","3.10.0","3.10.0rc1","3.10.1","3.10.1rc1","3.11.0","3.11.0rc1","3.11.1","3.11.1rc1","3.12.0","3.12.0rc1","3.12.0rc2","3.12.1","3.12.2","3.12.2rc1","3.12.3","3.12.3rc1","3.13.0","3.13.0rc1","3.13.1","3.13.1rc1","3.13.2","3.13.2rc1","3.13.3","3.13.3rc1","3.14.0","3.14.0rc1","3.14.1","3.14.1rc1","3.14.2","3.14.2rc1","3.14.3","3.14.3rc1","3.15.0","3.15.0rc1","3.15.1rc1","3.2.0","3.2.0rc1","3.3.0","3.3.0rc1","3.3.0rc2","3.3.1","3.3.1rc1","3.4.0","3.4.0rc1","3.4.0rc2","3.4.1","3.4.1rc1","3.4.2","3.4.2rc1","3.5.0","3.5.0rc1","3.5.1","3.5.1rc1","3.5.2","3.5.2rc1","3.6.0","3.6.0rc1","3.6.1","3.6.1rc1","3.7.0","3.7.0rc1","3.8.0","3.8.0rc1","3.8.0rc2","3.9.0","3.9.0rc1","3.9.1","3.9.1rc1"],"ecosystem_specific":{},"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/apache-airflow-providers-ftp/PYSEC-2026-238.yaml"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}