GHSA-xwx6-jjhv-84p8: n8n: Prototype Pollution via Dot-Notation Field Names Leads To Instance-Wide Denial of Service

The Edit Fields (Set) node assigned output fields through a dot-notation path setter without restricting the field name, so an authenticated user could name a field after an inherited built-in method path and corrupt a shared global in the main Node.js process. Because that global was used on the request-authentication path, the instance then failed every authenticated request, causing a instance-wide denial of service for all users until the process was restarted.