CVE-2026-49486 Details
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.
A vulnerability exists in the Apache Airflow FTP provider's FTPS handling. The FTPSHook.get_conn() method establishes a TLS connection using ftplib.FTP_TLS but fails to invoke the prot_p() command. As a result, while the control channel is secured with TLS, the data channel transmits information in cleartext. This oversight exposes file contents and credentials in transit to network attackers monitoring the data connection. The vulnerability affects Apache Airflow FTP provider versions prior to 3.15.1.
Users are advised to upgrade the Apache Airflow FTP provider to version 3.15.1 or later, which includes the necessary fix by calling the prot_p() command to encrypt the data channel.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 26, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2026/06/26/1 | CVE | |
| https://github.com/apache/airflow/pull/67946 | [email protected] | Issue TrackingPatch |
| https://lists.apache.org/thread/gwnsxlt9hfj5pc543wxtogbnjdn04xj1 | [email protected] | Mailing ListVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-319 | Cleartext Transmission of Sensitive Information | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| apache apache-airflow-providers-ftp | < 3.15.1 |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 16, 2026 | CVE Modified | [email protected] |
| Sep 16, 2026 | CVE Modified | CVE |
| Jun 26, 2026 | CVE Modified | CVE |
| Jun 26, 2026 | Initial Analysis | [email protected] |
| Jun 26, 2026 | CVE Modified | CISA-ADP |
| Jun 26, 2026 | New CVE Received | [email protected] |