| Component | n8n |
| Severity | high (CVSS 8.8) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Published (NVD) | 2026-05-04 |
| Last modified | 2026-06-17 |
| Affected versions | n8n < 1.123.32 n8n >= 2.17.0, < 2.17.4 n8n = 2.18.0 |
| Fixed in | 1.123.32, 2.17.4 |
| Weakness | CWE-1321 |
| CISA KEV | not listed |
NVD description
n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, an authenticated user with permission to create or modify workflows could achieve global prototype pollution via the XML Node leading to RCE when combined with other nodes exploiting the prototype pollution. This issue has been patched in versions 1.123.32, 2.17.4, and 2.18.1.
What to do
- Upgrade n8n to
1.123.32or later (or the patched release of your branch: 2.17.4). - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
Read more
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