Description
n8n before 1.123.67, 2.31.5, and 2.32.1 validates credential-access only for a node's top-level credentials and not for credentials referenced inside an Execute Sub-workflow node's inline workflow JSON. A member with Editor access to a shared workflow (when workflow sharing is enabled) who knows a target credential's ID can reference that credential in the inline JSON; it passes save-time and runtime validation and resolves in the parent workflow's project context, allowing the attacker to use or exfiltrate credentials they are not permitted to access.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| n8n-io | n8n | < 1.123.67, 2.32.0 – < 2.32.1, 2.0.0-rc.0 – < 2.31.5 | 1.123.67 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | n8n | < 1.123.67 | 1.123.67 | GHSA-cj9h-qx8g-pq2g |
| npm | n8n | >= 2.32.0, < 2.32.1 | 2.32.1 | GHSA-cj9h-qx8g-pq2g |
| npm | n8n | >= 2.0.0-rc.0, < 2.31.5 | 2.31.5 | GHSA-cj9h-qx8g-pq2g |
Advisories 1
- WID-SEC-2026-2489 n8n: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 11, 2026
References
- GitHub Security Advisory (GHSA-cj9h-qx8g-pq2g) vendor-advisory
- VulnCheck Advisory: n8n before 1.123.67 Credential Exfiltration via Sub-Workflow third-party-advisory