Key Exchange without Entity Authentication Affecting apache-airflow-providers-sftp package, versions [,7.0.0)


Severity

Recommended
0.0
critical
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.38% (32nd percentile)

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  • Snyk IDSNYK-PYTHON-APACHEAIRFLOWPROVIDERSSFTP-21200427
  • published18 Oct 2026
  • disclosed16 Oct 2026
  • creditIgor Stepansky

Introduced: 16 Oct 2026

NewCVE-2026-94135  (opens in a new tab)
CWE-322  (opens in a new tab)

How to fix?

Upgrade apache-airflow-providers-sftp to version 7.0.0 or higher.

Overview

apache-airflow-providers-sftp is a Provider package apache-airflow-providers-sftp for Apache Airflow

Affected versions of this package are vulnerable to Key Exchange without Entity Authentication via the deferrable code paths SFTPTrigger, SFTPHookAsync, and SFTPClientPool, which disable SSH host-key verification by default. When a connection does not explicitly set no_host_key_check to false, paramiko's AutoAddPolicy or known_hosts=None is applied on asyncssh paths, allowing an attacker positioned between the Airflow worker and the SFTP server to perform a MitM attack and intercept or tamper with transferred data.

Note: This is only exploitable on the deferrable code paths (SFTPTrigger, SFTPHookAsync, SFTPClientPool) when the connection does not explicitly set no_host_key_check to false.

CVSS Base Scores

version 4.0
version 3.1