Critical (9.4) in n8n n8n. EPSS 1.6% chance of exploitation in the next 30 days. Fixed in n8n 1.123.17, 2.5.2.
n8n is an open source workflow automation platform. Prior to versions 1.123.17 and 2.5.2, an authenticated user with permission to create or modify workflows could abuse crafted expressions in workflow parameters to trigger unintended system command execution on the host running n8n. This issue has been patched in versions 1.123.17 and 2.5.2.