Description
n8n before 1.123.85, 2.43.5, and 2.44.1 contains an authorization bypass vulnerability in Chat Hub that allows chat-only users to register restricted tool types. Users with the global:chatUser role can add and run tools through chat to execute sandboxed code, access permitted files, and use instance workflows, Data Tables, and agents.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| n8n-io | n8n | < 1.123.85, 2.44.0 – < 2.44.1, 2.0.0 – < 2.43.5 | 1.123.85 |
Advisories 1
- WID-SEC-2026-3898 n8n: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 28, 2026
References
- GitHub Security Advisory (GHSA-43v8-hjhm-chjp) vendor-advisory
- VulnCheck Advisory: n8n before 1.123.85, 2.43.5, and 2.44.1 Chat Hub Authorization Bypass third-party-advisory