n8n — Vulnerability (CVE-2026-54308)
Date: 2026-06
Affected: n8n/n8n
Attack vector: other
Category: vulnerability-disclosure
Severity: High
CVE: CVE-2026-54308
CWE: CWE-290
CVSS: 7.2 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N)

n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, the MicrosoftAgent365Trigger and StripeTrigger node did not validate that inbound requests. As a result, an unauthenticated attacker who knows the webhook URL could submit a forged payload and cause the workflow to execute with attacker-controlled data. This vulnerability is fixed in 2.25.7 and 2.26.2.


Mitigations:

Architectural layers (MAESTRO):