CVE-2026-56360

MediumCVSS 4.0/10Last modified Jul 8, 2026

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.

Metrics

CVSS 3.1 4.0/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

Weakness enumeration

CWE-290

Affected software

No affected versions have been published.

Timeline

Published
Jul 8, 2026
Last modified
Jul 8, 2026
NVD status
Analyzed

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CVE-2026-56360: Medium severity, CVSS 4.0 | Vulnix