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CVE-2026-72749

7.1 high SSVC exploitation: none Analyzed

n8n before 1.123.67, 2.31.5, and 2.32.1 contains a prototype pollution vulnerability in the Edit Fields (Set) node. The node assigns output fields via a dot-notation path setter without restricting the field name, allowing an authenticated user to name a field after an inherited built-in method path and corrupt a shared global in the main Node.js process. Because that global is used on the request-authentication path, the instance then fails every authenticated request, causing an instance-wide denial of service for all users until the process is restarted.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 7.1 · n8nNVD modified 2026-10-23 19:10

Affected (CPE criteria) 2

  • cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*
  • cpe:2.3:a:n8n:n8n:2.32.0:*:*:*:*:node.js:*:*

References 2