blueprintUE Self-Hosted Edition database root login without password

critical severity · published 2026-11-11

An attacker who can reach the Docker host on port 3306 logs in as the MariaDB root user without any password. They can read, change, or delete user accounts, blueprints, and all databases.

Fixed in: 4.3.7

CVE: CVE-2026-126812

Source: NVD

Am I affected?

You are affected if the installed version is older than 4.3.7. Check the version you have and update to 4.3.7 or later. The fixed version is verified against a vendor or advisory source.

Get the fix

FixLane has a reviewed fix procedure for this incident: a read-only check first, then the fix. Ask the Telegram bot, or connect an AI agent to the FixLane MCP server and call get_fix_prompt with incident id 2561 and your operating system.