{"id":"CVE-2026-49486","title":"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","summary":"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 u…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-319"],"vendor":"apache","product":"apache-airflow-providers-ftp","affected":["apache-airflow-providers-ftp < 3.15.1"],"patched":["apache-airflow-providers-ftp 3.15.1"],"published":"2026-06-26","updated":"2026-09-16","sourceUpdated":"2026-09-16T15:17:37.280","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-49486","references":[{"url":"https://github.com/apache/airflow/pull/67946","label":"security@apache.org"},{"url":"https://lists.apache.org/thread/gwnsxlt9hfj5pc543wxtogbnjdn04xj1","label":"security@apache.org"},{"url":"http://www.openwall.com/lists/oss-security/2026/06/26/1","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/advisories/GHSA-fgch-86x8-fv43"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49486"},{"url":"https://github.com/apache/airflow/commit/a929d142d667f71dea29c565a7167216a9c30378"},{"url":"https://github.com/apache/airflow"},{"url":"https://github.com/apache/airflow/releases/tag/providers-ftp/3.15.1"},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow-providers-ftp/PYSEC-2026-238.yaml"}],"tags":["nvd","cve.org","osv","pip"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-06-26T15:26:17.057742Z"},"epss":0.00442,"epssPercentile":0.3787,"aliases":["PYSEC-2026-238","GHSA-fgch-86x8-fv43"],"ecosystem":"pip","ingestedAt":"2026-09-04T19:32:57.882Z","slug":"CVE-2026-49486","body":"## Overview\n\nThe 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.\n\n## Affected\n\n- `apache-airflow-providers-ftp < 3.15.1`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `apache-airflow-providers-ftp 3.15.1`\n\n## Package advisory (CVE-2026-49486)\n\nAffected packages:\n\n- `apache-airflow-providers-ftp < 3.15.1`\n\nPatched in:\n\n- `apache-airflow-providers-ftp 3.15.1`\n\nSource: https://osv.dev/vulnerability/PYSEC-2026-238","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}