| Component | n8n |
| Severity | medium (CVSS 5.4) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| Published (NVD) | 2026-06-23 |
| Last modified | 2026-06-25 |
| Affected versions | n8n < 2.24.0 |
| Fixed in | 2.24.0 |
| Weakness | CWE-79 |
| CISA KEV | not listed |
NVD description
n8n is an open source workflow automation platform. Prior to 2.24.0, an endpoint in the Meta and Microsoft Teams trigger nodes reflects a query parameter into the HTTP response without sanitization or Content-Security-Policy headers, enabling reflected XSS in the n8n origin when a logged-in user visits a crafted URL. This vulnerability is fixed in 2.24.0.
What to do
- Upgrade n8n to
2.24.0or later. - 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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