Description
n8n is an open source workflow automation platform. Prior to versions 1.123.9 and 2.2.1, a Cross-Site Scripting (XSS) vulnerability existed in a markdown rendering component used in n8n's interface, including workflow sticky notes and other areas that support markdown content. An authenticated user with permission to create or modify workflows could abuse this to execute scripts with same-origin privileges when other users interact with a maliciously crafted workflow. This could lead to session hijacking and account takeover. This issue has been patched in versions 1.123.9 and 2.2.1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| n8n-io | n8n | < 1.123.9, < 2.2.1 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | n8n | >= 2.0.0, < 2.2.1 | 2.2.1 | GHSA-qpq4-pw7f-pp8w |
| npm | n8n | < 1.123.9 | 1.123.9 | GHSA-qpq4-pw7f-pp8w |
Advisories 2
- WID-SEC-2026-0318 n8n: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 26, 2026
- NCSC-2026-0049 Kwetsbaarheden verholpen in n8n NCSC-NL (Netherlands) · Feb 9, 2026