CVE-2026-49486

Apache Airflow FTP provider: FTP Provider does not protect FTPS data channel (missing PROT_P)

Published Jun 26, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-fgch-86x8-fv43 Apache Airflow FTP provider: FTP Provider does not protect FTPS data channel (missing PROT_P)
History
Type Values Removed Values Added
First Time appeared Apache
Apache airflow Ftp Provider
Vendors & Products Apache
Apache airflow Ftp Provider
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'}

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
Weaknesses

Sources

Status
PUBLISHED
Assigner
apache
Published
Updated
Sep 16, 2026, 2:55 PM
Reserved
May 31, 2026, 1:40 AM
Status
Modified
Published
Jun 26, 2026, 8:16 AM
Modified
Oct 25, 2026, 10:10 PM