medium5.3
CVE-2026-103245
n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 fail to verify the x-webflow-signature HMAC in the Webflow Trigger node w…
Impact
n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 fail to verify the x-webflow-signature HMAC in the Webflow Trigger node webhook handler. Unauthenticated attackers can send forged webhook requests with attacker-controlled payloads to trigger workflows and manipulate downstream actions like record creation or API calls.
Affected products
| Product | Affected versions |
|---|---|
| N8n | before 1.123.80 |
| From 2.0.0 | before 2.39.6 |
| And From 2.40.0 | before 2.40.1 |
Versions were read from the advisory text. No structured product data has been published for this record yet.