CVE-2026-54303
Medium
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.
SeverityMedium
CVSS5.4
Exploit probability—
Product
N8n
PublishedJun 23, 2026
First seenJun 23, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- n8n n8n2.24.0 or later
- n8n2.24.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| n8n n8n | v < 2.24.0 | 2.24.0 |
| n8nnpm | v < 2.24.0 | 2.24.0 |
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