Description
n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the Git node clone operation matched an attacker-controlled destination path against the default N8N_BLOCK_FILE_PATTERNS regular expression. The pattern ^(./).git(/.)$ allowed catastrophic backtracking and ran synchronously in the main n8n process. An authenticated workflow editor could therefore freeze the instance with one workflow execution; the affected default is declared in packages/@n8n/config/src/configs/security.config.ts. 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-j535-v25q-vx3q |
| npm | n8n | >= 2.38.0, < 2.38.2 | 2.38.2 | GHSA-j535-v25q-vx3q |
| npm | n8n | >= 2.0.0, < 2.37.7 | 2.37.7 | GHSA-j535-v25q-vx3q |
Advisories 1
- WID-SEC-2026-3165 n8n: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 16, 2026