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Vulnerabilities

Vulnerability · CVE-2026-94135

Apache Airflow SFTP provider: Async SFTP hook disables host-key verification by default

Published Oct 15, 2026 · catalog updated Oct 16, 2026 · Apache Software Foundation Apache Airflow SFTP provider

Check if you run it

No confirmed exploitation is on record for CVE-2026-94135. EPSS is 0.22%. Act only if a listed version of Apache Software Foundation Apache Airflow SFTP provider is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.22%
Remediation
Not established
Affected products
vendor Apache Software Foundation Apache Airflow SFTP provider

The Apache Airflow SFTP provider's deferrable code paths ( , , ) disable SSH host-key verification by default unless the connection explicitly sets to false. Deployments that run SFTP sensors or operators in deferrable mode are affected. An attacker in a machine-in-the-middle position between the triggerer and the SFTP server can impersonate the server and capture the credentials or data exchanged. Users of apache-airflow-providers-sftp are recommended to upgrade to apache-airflow-providers-sftp 7.0.0 or later. This is a separate defect from CVE-2026-94134 (the synchronous SSH hook default, which also affects the SFTP hook); users who applied the fix for one also need this release for the other - apache-airflow-providers-sftp 7.0.0 fixes both.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Apache Software Foundation Apache Airflow SFTP providerversion unspecified

How to fix CVE-2026-94135

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-94135. EPSS is 0.22%. Act only if a listed version of Apache Software Foundation Apache Airflow SFTP provider is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-322. EPSS 0.22%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 15, 2026 · NIST NVD

    Detected

    The Apache Airflow SFTP provider's deferrable code paths ( , , ) disable SSH host-key verification by default unless the connection explicitly sets to false. Deployments that run SFTP sensors or operators in deferrable mode are affected. An attacker in a machine-in-the-middle position between the triggerer and the SFTP server can impersonate the server and capture the credentials or data exchanged

  2. Oct 16, 2026 · NIST NVD

    Updated

    The Apache Airflow SFTP provider's deferrable code paths ( , , ) disable SSH host-key verification by default unless the connection explicitly sets to false. Deployments that run SFTP sensors or operators in deferrable mode are affected. An attacker in a machine-in-the-middle position between the triggerer and the SFTP server can impersonate the server and capture the credentials or data exchanged

Sources

  • CVE.orgVulnerability recordCVE-2026-94135

    The Apache Airflow SFTP provider's deferrable code paths ( , , ) disable SSH host-key verification by default unless the connection explicitly sets to false. Deployments that run SFTP sensors or operators in deferrable mode are affected. An attacker in a machine-in-the-middle pos

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-94135

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-94135

    The Apache Airflow SFTP provider's deferrable code paths ( , , ) disable SSH host-key verification by default unless the connection explicitly sets to false. Deployments that run SFTP sensors or operators in deferrabl

    nvd.nist.gov
  • Openwall OSS SecurityThreat researchCVE-2026-94135

    Research mention from Openwall OSS Security. Not confirmation of exploitation.

    openwall.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.