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.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Thu, 01 Oct 2026 11:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | n8n before 1.123.80, 2.39.6, and 2.40.1 Missing Webhook Signature Verification | |
| First Time appeared |
N8n
N8n n8n |
|
| Weaknesses | CWE-347 | |
| CPEs | cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:* | |
| Vendors & Products |
N8n
N8n n8n |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-10-01T15:02:26.087Z
Reserved: 2026-09-30T10:52:32.248Z
Link: CVE-2026-103245
No data.
Status : Deferred
Published: 2026-10-01T11:17:17.670
Modified: 2026-10-01T15:17:26.180
Link: CVE-2026-103245
No data.
OpenCVE Enrichment
Updated: 2026-10-01T15:30:08Z
Weaknesses