Description
n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the GitHub Trigger generated a webhook secret but discarded it when GitHub returned HTTP 422 and the node reused an existing webhook. Workflow static data then retained webhookId without webhookSecret, and X-Hub-Signature-256 verification accepted deliveries without a stored secret. The affected logic includes packages/nodes-base/nodes/Github/GithubTriggerHelpers.ts and the 422 webhook reuse path. This issue is fixed in versions 1.123.76, 2.37.7 and 2.38.2.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| n8n-io | n8n | >= 2.38.0, < 2.38.2, >= 2.0.0, < 2.37.7, < 1.123.76 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | n8n | < 1.123.76 | 1.123.76 | GHSA-5m98-cgcr-xx3q |
| npm | n8n | >= 2.38.0, < 2.38.2 | 2.38.2 | GHSA-5m98-cgcr-xx3q |
| npm | n8n | >= 2.0.0, < 2.37.7 | 2.37.7 | GHSA-5m98-cgcr-xx3q |
Advisories 1
- WID-SEC-2026-3165 n8n: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 16, 2026