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CVE-2026-56360 n8n - Webhook Forgery via Unsigned POST Requests in ZendeskTrigger

🗓️ 08 Jul 2026 13:49:03Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 2 Views

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.

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15 Jul 2026 01:49Current
6.2Medium risk
Vulners AI Score6.2
CVSS 46.3
EPSS0.00186
2