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TI-2026-75101 Aliases CVE-2026-94134GHSA-p86c-663x-5pxq

Apache Airflow SSH and SFTP providers skip host-key checks by default

Priority MEDIUM 46CWE-322Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

Apache Airflow SSH provider and Apache Airflow SFTP provider before 7.0.0 disable SSH host-key verification by default. The SSH hook accepts any server key unless host_key is configured or no_host_key_check is explicitly set to false (CWE-322). An attacker in a machine-in-the-middle position can impersonate the server and capture the credentials or data a task sends.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.006 48th percentileScored 2026-11-07
Fix Fixed Apache Airflow SSH provider (Apache Software Foundation): 7.0.0Apache Airflow SFTP provider (Apache Software Foundation): 7.0.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Airflow SSH providerbefore 7.0.07.0.0Patch availableCNA
ApacheApache Airflow SFTP providerbefore 7.0.07.0.0Patch availableCNA
  • Apache Airflow SSH provider VendorApache Affected before 7.0.0 Fixed in 7.0.0 Patch available CNA
  • Apache Airflow SFTP provider VendorApache Affected before 7.0.0 Fixed in 7.0.0 Patch available CNA

Remediation

Upgrade Apache Airflow SSH provider and Apache Airflow SFTP provider to 7.0.0 or later, which fixes both packages.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Apache Airflow SSH provider (Apache Software Foundation) Fixed in 7.0.0
  • Fix · CNA Apache Airflow SFTP provider (Apache Software Foundation) Fixed in 7.0.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Apache Airflow SFTP provider 7.0.0

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-75102 Apache Airflow SFTP provider disables host-key checks by defaultPriority LOW 20
    Show all 2 records →

Timeline

  1. 2026-10-16 Threatist record created from CVE-2026-94134
  2. 2026-10-16 CVSS score added · CISA ADP
  3. 2026-10-16 CISA SSVC decision points changed
  4. 2026-10-16 Priority changed: LOW → MEDIUM
  5. 2026-10-16 Alias added: GHSA-p86c-663x-5pxq

References

Patch 1

Advisory 1

Other 1

  • TI-2025-18529 Apache Tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT KEVCVSS 3.1CRITICAL 10.0
  • TI-2024-30292 Apache OFBiz: Confused controller-view authorization logic (forced browsing) KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-26062 Apache OFBiz: Unauthenticated endpoint could allow execution of screen rendering code KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-21190 Apache OFBiz: Path traversal leading to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-18186 Apache HugeGraph-Server: Command execution in gremlin KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-25106 Deserialization of untrusted data in Apache ActiveMQ KEVCVSS 3.1CRITICAL 10.0
See all 4053 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences