CVE-2026-59257 n8n - SQL Injection in MySQL v1 executeQuery Operation via Expression Interpolation

n8n before 1.123.61, 2.x before 2.27.4, and 2.28.x before 2.28.1 contains a SQL injection vulnerability in the legacy MySQL v1 node's executeQuery operation. The operation substitutes evaluated ... expression values directly into the raw SQL string without parameterization. When a workflow uses...