{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "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" }, "containers": { "cna": { "providerMetadata": { "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "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" }, "affected": [ { "vendor": "Apache Software Foundation", "product": "Apache Airflow SSH provider", "packageURL": "pkg:pypi/apache-airflow-providers-ssh", "versions": [ { "status": "affected", "version": "0", "lessThan": "7.0.0", "versionType": "semver" } ], "defaultStatus": "unaffected", "collectionURL": "https://pypi.python.org", "packageName": "apache-airflow-providers-ssh" }, { "vendor": "Apache Software Foundation", "product": "Apache Airflow SFTP provider", "packageURL": "pkg:pypi/apache-airflow-providers-sftp", "versions": [ { "status": "affected", "version": "0", "lessThan": "7.0.0", "versionType": "semver" } ], "defaultStatus": "unaffected", "collectionURL": "https://pypi.python.org", "packageName": "apache-airflow-providers-sftp" } ], "descriptions": [ { "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", "supportingMedia": [ { "type": "text/html", "base64": false, "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" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T14:53:59.032Z" } } ] } }