VULNERABILITY INTELLIGENCE

CVE-2026-72749

CVSS score6.5 MEDIUM
EPSS probability0.57%
CISA KEVNot currently listed
Published2026-08-11
Last modified2026-10-29
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

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.

Weakness classification

  • disclosure@vulncheck.com: CWE-1321

Primary references