CVE-2026-49486
Apache Airflow FTP provider: FTP Provider does not protect FTPS data channel (missing PROT_P)
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
7.5
Apache Airflow FTP provider: FTP Provider does not protect FTPS data channel (missing PROT_P)
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.
- Record
CVE-2026-49486- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-319
- Updated
- 2026-11-02
EUVDEUVD-2026-39627
7.5
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.
- Record
EUVD-2026-39627- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-fgch-86x8-fv43
7.5
Apache Airflow FTP provider: FTP Provider does not protect FTPS data channel (missing PROT_P)
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.
- Record
GHSA-fgch-86x8-fv43- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-319
- Updated
- 2026-11-02
NVD
7.5
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.
- Record
CVE-2026-49486- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-319
- Updated
- 2026-11-02
OSV
7.5
Apache Airflow FTP provider: FTP Provider does not protect FTPS data channel (missing PROT_P)
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.
- Record
CVE-2026-49486- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-319
- Updated
- 2026-11-02
OSVGHSA-fgch-86x8-fv43
7.5
Apache Airflow FTP provider: FTP Provider does not protect FTPS data channel (missing PROT_P)
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.
- Record
GHSA-fgch-86x8-fv43- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-319
- Updated
- 2026-11-02
OSVPYSEC-2026-238
7.5
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.
- Record
PYSEC-2026-238- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
apache-airflow-providers-ftpPyPI |
before 3.15.1 | 3.15.1 |
apache-airflow-providers-ftpPyPI |
before 3.15.1, plus listed versions 1.0.01.0.0b11.0.0b21.0.0rc11.0.1 Show 45 moreShow less1.0.1rc11.1.01.1.0rc12.0.02.0.0rc12.0.0rc22.0.12.0.1rc12.1.02.1.0rc12.1.12.1.1rc12.1.22.1.2rc13.0.03.0.0rc13.0.0rc23.1.03.1.0rc13.10.03.10.0rc13.10.13.10.1rc13.11.03.11.0rc13.11.13.11.1rc13.12.03.12.0rc13.12.0rc23.12.13.12.23.12.2rc13.12.33.12.3rc13.13.03.13.0rc13.13.13.13.1rc13.13.23.13.2rc13.13.33.13.3rc13.14.03.14.0rc1 |
3.15.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-49486 is a high vulnerability (CVSS 7.5) in Apache Apache-airflow-providers-ftp, published June 26, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.44%, the 38th percentile. Fixed in apache-airflow-providers-ftp 3.15.1.
References
github.com/apache/airflow/pull/67946
lists.apache.org/thread/gwnsxlt9hfj5pc543wxtogbnjdn04xj1
openwall.com/lists/oss-security/2026/06/26/1
nvd.nist.gov/vuln/detail/CVE-2026-49486
github.com/apache/airflow/commit/a929d142d667f71dea29c565a7167216a9c30378
github.com/apache/airflow/releases/tag/providers-ftp/3.15.1
Left out here: 42 versions. The JSON record has them.