# CVE-2026-94134: Apache Airflow SSH provider, Apache Airflow SFTP provider: SSH hook disables host-key verification by default

> Attackers can intercept SSH/SFTP connections due to disabled host-key verification, capturing credentials and data.

- **Severity:** Critical 9.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Oct 2026
- **Updated:** 16 Oct 2026
- **Also known as:** GHSA-p86c-663x-5pxq

## What is CVE-2026-94134?

CVE-2026-94134 is a critical vulnerability in Apache Airflow SFTP provider, published on 15 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

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.

Weakness: CWE-322 (Key Exchange without Entity Authentication)

## Which versions are affected by CVE-2026-94134?


## How do I fix CVE-2026-94134?

No fix has been published for CVE-2026-94134 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-94134 being exploited?

There is no known exploitation of CVE-2026-94134 in the wild and no public exploit code.

Public exploit code:

- Exploitation POC for CVE-2026-94134 (github_poc): https://github.com/MosesOX/POC-CVE-2026-94134

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-94134 and fix it if it is affected.

What it is: CVE-2026-94134 is a critical vulnerability in Apache Airflow SFTP provider, published on 15 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-94134 in the wild and no public exploit code.

Affected product: Apache Airflow SFTP provider. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-94134/ (Markdown: https://insights.sbomify.com/CVE-2026-94134/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-94134
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-94134
- OSV: https://osv.dev/vulnerability/CVE-2026-94134

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-94134/
Summaries are generated and may contain mistakes; the official description above is the record.