Description
n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contain an arbitrary file read and write vulnerability in the Snowflake node, which passes free-form Execute Query input, including client-side commands, directly to the Snowflake SDK without applying n8n's file-access restrictions. An authenticated user with usable Snowflake credentials can upload a local file from the n8n host or overwrite an existing file with a staged one.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| n8n-io | n8n | < 1.123.69, 2.34.0 – < 2.34.1, 2.0.0 – < 2.33.4 | 1.123.69 |
Advisories 1
- WID-SEC-2026-2681 n8n: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 20, 2026
References
- GitHub Security Advisory (GHSA-r4j2-j3wm-q689) vendor-advisory
- VulnCheck Advisory: n8n before 1.123.69 Arbitrary File Read and Write via Snowflake third-party-advisory