n8n before 1.123.80, 2.39.6, and 2.40.1 Missing Webhook Signature Verification
Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.
cve-program · CVE-2026-103245
Publishedn8n 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.
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CVE-2026-103245 · CVE overview and exploitation status
cve-program · CVE-2026-103245
This historical advisory does not include today's related changes. Open the latest advisory to find current connections.