Vulnerability in n8n-io n8n

[ Description ]Official description

n8n before 2.42.6, 2.43.x before 2.43.3, and 3.x before 3.0.1 contains a remote code execution vulnerability via deprecated Function, Function Item, and LangChain Code nodes running outside task runner isolation. Authenticated users who can create, modify, or import workflows naming these hidden node types can execute JavaScript in the n8n main process.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund27 Oct 2026WID-SEC-2026-4192

  n8n: Multiple vulnerabilities Translated from German

  CVE-2026-119408

[ References ]References

• abraxaslabs.tech/research/n8n-function-vm2
• github.com/n8n-io/n8n
• github.com/n8n-io/n8n/blob/n8n@2.42.0/packages/nodes-base/nodes/Function/Function.node.ts
• github.com/n8n-io/n8n/commit/ea8417e29ad6f8b981d9a04b17283d5d77f2b5bb
• github.com/n8n-io/n8n/releases/tag/n8n@2.42.6
• github.com/n8n-io/n8n/releases/tag/n8n@2.43.3
• github.com/n8n-io/n8n/releases/tag/n8n@3.0.1
• github.com/n8n-io/n8n/security/advisories/GHSA-9p7v-45m2-wxgj
• www.vulncheck.com/advisories/n8n-before-2.42.6-2.43.3-and-3.0.1-code-execution-outside-…