CVE-2026-72749
n8n before 1.123.67 Prototype Pollution via Edit Fields
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-1321 |
| Vendor | n8n-io |
| Product | n8n |
| Published | Aug 11, 2026 |
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Affected Versions
n8n-io / n8n
0 < 1.123.67
n8n-io / n8n
0 < 2.32.1
n8n-io / n8n
0 < 2.31.5
References
Credits
🔍 breakingsystems