Description
n8n is an open source workflow automation platform. Prior to 1.123.43, 2.22.1, and 2.20.7, an authenticated user with permission to create or modify workflows could achieve global prototype pollution via an unvalidated pagination parameter in the HTTP Request node. Combined with other techniques this could lead to RCE on the instance. This vulnerability is fixed in 1.123.43, 2.22.1, and 2.20.7.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| n8n-io | n8n | < 1.123.43, >= 2.0.0-rc.0, < 2.20.7, >= 2.21.0, < 2.21.1 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 1 repository
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BiiTts/CVE-2026-44789-n8n-PrototypePollution-RCE ★ 4 · Jun 30, 2026
CVE-2026-44789 — n8n <1.123.43 HTTP Request pagination prototype pollution to RCE (NODE_OPTIONS runner-spawn gadget). Lab + automated PoC, verified e2e.
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | n8n | < 1.123.43 | 1.123.43 | GHSA-c8xv-5998-g76h |
| npm | n8n | >= 2.21.0, < 2.22.1 | 2.22.1 | GHSA-c8xv-5998-g76h |
| npm | n8n | >= 2.0.0-rc.0, < 2.20.7 | 2.20.7 | GHSA-c8xv-5998-g76h |
Advisories 1
- WID-SEC-2026-1519 n8n: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 23, 2026