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.
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