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CVE PROGRAM SOURCE RECORD6.3 Medium

CVE-2026-56360

n8n - Webhook Forgery via Unsigned POST Requests in ZendeskTrigger

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Status
Published
Published
Updated
Assigning organization
VulnCheck

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

n8n n8n

Default version status: unaffected

  • 0 to < 1.123.18affected
  • 1.123.18unaffected
  • 2.0.0 to < 2.6.2affected
  • 2.6.2unaffected
pkg:npm/n8n

References