CVE-2026-103245 | n8n-io n8n up to 1.123.79/2.39.5/2.40.0 Webhook improper authentication

October 1, 2026 Yanac

A vulnerability categorized as problematic has been discovered in n8n-io n8n up to 1.123.79/2.39.5/2.40.0. Affected by this vulnerability is an unknown functionality of the component Webhook Handler. Executing a manipulation can lead to improper authentication.

This vulnerability appears as CVE-2026-103245. The attack may be performed from remote. There is no available exploit.

It is advisable to upgrade the affected component.VulDB Recent EntriesRead More