{
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"cveId": "CVE-2026-94134",
"assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
"state": "PUBLISHED",
"assignerShortName": "apache",
"dateReserved": "2026-09-20T18:23:05.037Z",
"datePublished": "2026-10-15T21:39:03.081Z",
"dateUpdated": "2026-10-16T14:53:59.032Z"
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"dateUpdated": "2026-10-16T03:39:17.565Z"
},
"title": "Apache Airflow SSH provider, Apache Airflow SFTP provider: SSH hook disables host-key verification by default",
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-322: Key Exchange without Entity Authentication",
"lang": "en",
"cweId": "CWE-322",
"type": "CWE"
}
]
}
],
"source": {
"discovery": "UNKNOWN"
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{
"vendor": "Apache Software Foundation",
"product": "Apache Airflow SSH provider",
"packageURL": "pkg:pypi/apache-airflow-providers-ssh",
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{
"status": "affected",
"version": "0",
"lessThan": "7.0.0",
"versionType": "semver"
}
],
"defaultStatus": "unaffected",
"collectionURL": "https://pypi.python.org",
"packageName": "apache-airflow-providers-ssh"
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{
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"product": "Apache Airflow SFTP provider",
"packageURL": "pkg:pypi/apache-airflow-providers-sftp",
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],
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"collectionURL": "https://pypi.python.org",
"packageName": "apache-airflow-providers-sftp"
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"value": "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.\n\nUsers 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.",
"lang": "en",
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"value": "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."
}
]
}
],
"references": [
{
"url": "https://github.com/apache/airflow/pull/73419",
"tags": [
"patch"
]
},
{
"url": "https://www.cve.org/CVERecord?id=CVE-2026-94135",
"tags": [
"related"
]
},
{
"url": "https://lists.apache.org/thread/ksr1lztvd3zr74f8xd1hzch1ssl0l3lj",
"tags": [
"vendor-advisory"
]
}
],
"metrics": [
{
"other": {
"type": "Textual description of severity",
"content": {
"text": "moderate"
}
},
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Claude Security Scans",
"type": "tool"
},
{
"lang": "en",
"value": "Igor Stepansky, OX Security",
"type": "finder"
},
{
"lang": "en",
"value": "Jarek Potiuk",
"type": "remediation developer"
}
],
"x_generator": {
"engine": "airflow-s/generate_cve_json.py"
}
},
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 9.1,
"attackVector": "NETWORK",
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
}
},
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-10-16T14:53:40.519965Z",
"id": "CVE-2026-94134",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
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}
],
"role": "CISA Coordinator",
"version": "2.0.3"
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}
],
"title": "CISA ADP Vulnrichment",
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"shortName": "CISA-ADP",
"dateUpdated": "2026-10-16T14:53:59.032Z"
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}
]
}
}