Vulnerability in N8n-Io N8n
CVE-2026-119408
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/n8n-io/n8n/security/advisories/GHSA-9p7v-45m2-wxgj (vendor-advisory)
- github.com/n8n-io/n8n/commit/ea8417e29ad6f8b981d9a04b17283d5d77f2b5bb (patch)
- github.com/n8n-io/n8n/blob/n8n@2.42.0/packages/nodes-base/nodes/Function/Functi… (technical-description)
- github.com/n8n-io/n8n/releases/tag/n8n@2.42.6 (release-notes)
- github.com/n8n-io/n8n/releases/tag/n8n@2.43.3 (release-notes)
- github.com/n8n-io/n8n/releases/tag/n8n@3.0.1 (release-notes)
- abraxaslabs.tech/research/n8n-function-vm2 (third-party-advisory)
- github.com/n8n-io/n8n (product)
- www.vulncheck.com/advisories/n8n-before-2.42.6-2.43.3-and-3.0.1-code-execution-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-119408?
- CVE-2026-119408 is a high-severity vulnerability in N8n-Io N8n, classified under CWE-653. CVSS score: 8.8/10. Published 2026-10-30.
- How severe is CVE-2026-119408?
- High severity. CVSS v3 base score is 8.8 out of 10.