Apache Airflow SSH provider, Apache Airflow SFTP provider: SSH hook disables host-key verification by default
The Apache Airflow SSH provider hook disables SSH host-key verification by default: unless `host_key` is configured or `no_host_key_check` is explicitly set to false, it accepts any server key. This affects SSH and SFTP connections that rely on the default. An attacker in a machine-in-the-middle position between the worker and the SSH or SFTP server can impersonate the server and capture the credentials or data a task sends. Users of apache-airflow-providers-ssh and apache-airflow-providers-sftp are recommended to upgrade to apache-airflow-providers-ssh 7.0.0 and apache-airflow-providers-sftp 7.0.0 or later. The deferrable SFTP code paths had the same default and are covered separately by CVE-2026-94135; apache-airflow-providers-sftp 7.0.0 fixes both.
CVE-2026-94134
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-94134
Apache Airflow SSH provider
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Apache Airflow SFTP provider
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Apache Software Foundation",
"product": "Apache Airflow SSH provider",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "7.0.0",
"versionType": "semver"
}
],
"packageURL": "pkg:pypi/apache-airflow-providers-ssh",
"packageName": "apache-airflow-providers-ssh",
"collectionURL": "https://pypi.python.org",
"defaultStatus": "unaffected"
},
{
"vendor": "Apache Software Foundation",
"product": "Apache Airflow SFTP provider",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "7.0.0",
"versionType": "semver"
}
],
"packageURL": "pkg:pypi/apache-airflow-providers-sftp",
"packageName": "apache-airflow-providers-sftp",
"collectionURL": "https://pypi.python.org",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-94134
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #32562 · Revision 1
- Added to Heist Feed
- Publisher date