CVE-2026-110842 | n8n-io n8n up to 2.41.3/2.42.0 MCP workflow-validation tool prototype pollution

October 15, 2026 Yanac

A vulnerability has been found in n8n-io n8n up to 2.41.3/2.42.0 and classified as critical. Affected by this vulnerability is an unknown functionality of the component MCP workflow-validation tool. This manipulation causes improperly controlled modification of object prototype attributes.

The identification of this vulnerability is CVE-2026-110842. It is possible to initiate the attack remotely. There is no exploit available.

The affected component should be upgraded.VulDB Recent EntriesRead More