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.

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Fixes

Solution

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Workaround

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History

Mon, 29 Jun 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Apache
Apache airflow Ftp Provider
Vendors & Products Apache
Apache airflow Ftp Provider

Fri, 26 Jun 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 26 Jun 2026 07:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Apache Airflow FTP provider: FTP Provider does not protect FTPS data channel (missing PROT_P)
Weaknesses CWE-319
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-06-26T18:36:15.852Z

Reserved: 2026-05-31T01:40:24.353Z

Link: CVE-2026-49486

cve-icon Vulnrichment

Updated: 2026-06-26T18:36:15.852Z

cve-icon NVD

Status : Modified

Published: 2026-06-26T08:16:23.830

Modified: 2026-06-26T19:16:41.907

Link: CVE-2026-49486

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-29T20:08:15Z

Weaknesses