CVE-2026-103252 | n8n-io n8n up to 1.123.79/2.39.5/2.40.0 Credential Test Endpoint project ID authorization

October 1, 2026 Yanac

A vulnerability described as problematic has been identified in n8n-io n8n up to 1.123.79/2.39.5/2.40.0. This issue affects some unknown processing of the component Credential Test Endpoint. Such manipulation of the argument project ID leads to authorization bypass.

This vulnerability is uniquely identified as CVE-2026-103252. The attack can be launched remotely. No exploit exists.

Upgrading the affected component is recommended.VulDB Recent EntriesRead More