Description
n8n before 2.28.1 contains an information disclosure vulnerability where external secrets are incorrectly resolved in workflow node expressions outside credentials scope. Authenticated project editors can read plaintext external secret values by referencing them in node expressions without requiring explicit secrets access permissions.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| n8n | n8n | 2.28.0 – < 2.28.1, < 2.27.4 | 2.28.1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | n8n | >= 2.28.0, < 2.28.1 | 2.28.1 | GHSA-2434-3x6q-8r99 |
| npm | n8n | < 2.27.4 | 2.27.4 | GHSA-2434-3x6q-8r99 |
Advisories 1
- WID-SEC-2026-2067 n8n: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 15, 2026
References
- GitHub Security Advisory (GHSA-2434-3x6q-8r99) vendor-advisory
- VulnCheck Advisory: n8n - External Secrets Disclosure via Workflow Node Expressions third-party-advisory