CVE-2026-54312
HighCVSS 8.5Exploitation Probability (EPSS)
Low risk21th percentile — higher than 21% of all known CVEs
Summary
n8n is a workflow automation platform that prior to version 2.24.0 allowed authenticated users with permissions to create or modify workflows to achieve global prototype pollution via the Microsoft SQL node by supplying a crafted value as the table parameter.
Risk Assessment
Prototype pollution can lead to application-wide validation failures and render the application non-functional, affecting service availability within the organization.
Recommendation
It is recommended to upgrade n8n to version 2.24.0 or later to mitigate this vulnerability.
Original NVD description (English source)
n8n is an open source workflow automation platform. Prior to 2.24.0, an authenticated user with permission to create or modify workflows could achieve global prototype pollution via the Microsoft SQL node by supplying a crafted value as the table parameter. This pollutes Object.prototype process-wide for the lifetime of the n8n server process, causing application-wide validation failures and rendering the n8n instance completely non-functional until restarted. This vulnerability is fixed in 2.24.0.