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n8n MongoDB Node Find And Replace Operation Vulnerability

A security vulnerability in the MongoDB node's Find And Replace operation allows authenticated users with workflow edit access to supply a malicious filter valu

17 Jun 2026Read 1 minSeverity: schedule it

What changed

A security vulnerability in the MongoDB node's Find And Replace operation allows authenticated users with workflow edit access to supply a malicious filter value, leading to unintended document matching and overwriting with attacker-controlled content.

Who it affects

n8n instances where authenticated users have workflow edit access and the MongoDB node is enabled.

What to do today

Upgrade to n8n version 2.24.0 or later. If immediate upgrade is not possible, limit workflow creation/editing permissions to trusted users and disable the MongoDB node via NODES_EXCLUDE environment variable.

The trail
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