CVE-2026-56360
MEDIUM
NVD
CVSS Score
4
Severity
MEDIUM
Published
Jul 08, 2026
Vendor
unknown
Description
n8n before versions 1.123.18 and 2.6.2 fails to verify HMAC-SHA256 signatures on Zendesk webhooks in the ZendeskTrigger node. Attackers who know the webhook URL can send unsigned POST requests to trigger workflows with arbitrary malicious data.