CVE-2026-94135
Apache Airflow SFTP provider: Async SFTP hook disables host-key verification by default
Published Oct 15, 2026 · corrected/updated Oct 16, 2026 · Apache Software Foundation Apache Airflow SFTP provider · evidence confidence high
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.
Grounded briefings
Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.
Executive
CVE-2026-94135 is a unknown public vulnerability record for Apache Software Foundation Apache Airflow SFTP provider. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.
System administrator
Identify whether Apache Software Foundation Apache Airflow SFTP provider is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: Apache Software Foundation Apache Airflow SFTP provider. Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.
Security analyst
Signals on file: no CVSS/EPSS yet. It is not currently listed in the CISA Known Exploited catalog. Weakness classes: CWE-322. Sources contributing to this record: cve_org, nvd, openwall. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.
Exploitation and remediation
Exploitation evidence
Not listed as known exploited in CISA KEV. Not in CISA KEV or VulnCheck KEV.
Patch and remediation
No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.
Safe detection guidance
Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
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
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
Affected
- vendor Apache Software Foundation Apache Airflow SFTP providerversion unspecified
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 - 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