CVE-2026-55854

About vulnerability

MariaDB Connector/Node.js is used to connect applications developed on Node.js to MariaDB and MySQL databases. Prior to 3.2.4, 3.3.3, 3.4.6, and 3.5.3, MariaDB Connector/Node.js can disclose an account password when PAM dialog authentication is negotiated over an insecure transport. In lib/cmd/handshake/auth/pam-password-auth.js and lib/cmd/handshake/authentication.js, the SendPamAuthPacketFactory behavior for the server-side plugin dialog lacked the secure-transport gate applied to mysql_clear_password. With the default sslMode=DISABLE and restrictedAuth=null settings, a hostile or on-path server can send an Authentication Switch Request for dialog over plain TCP, causing the connector to return the account password in cleartext. Properly verified TLS and a local Unix socket prevent this path, while fingerprint-only server identity validation is not sufficient. This issue is fixed in versions 3.2.4, 3.3.3, 3.4.6, and 3.5.3.

Affected product:

MariaDB , adk-js , google-adk , mikro-orm , mikro-orm-cli , mikro-orm-core , mikro-orm-entity-generator , mikro-orm-libsql , mikro-orm-mariadb , mikro-orm-migrations , mikro-orm-migrations-mongodb , mikro-orm-mssql , mikro-orm-mysql , mikro-orm-postgresql , mikro-orm-reflection , mikro-orm-seeder , mikro-orm-sqlite , prisma-adapter-mariadb , sdk-typescript , temporalio-worker

Affected packages:

MariaDB @ 3.5.2 (+115 more)