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[ CVE-2026-107382 · Published 8 Oct 2026 ]

MariaDB Connector/Node.js: Uncaught exception crashes the client during ed25519 authentication with zero-configuration TLS

CVSS 5.9 EPSS <1%1 agency advisoryFix available

[ Description ]Official description

MariaDB Connector/Node.js is used to connect applications developed on Node.js to MariaDB and MySQL databases. From 3.3.0 until 3.5.4, the zero-configuration TLS fingerprint-validation path calls Ed25519PasswordAuth.hash() through Authentication.validateFingerPrint, but Ed25519PasswordAuth.hash() references a seed identifier that is not in scope. Exposure requires a MariaDB server reached over TCP, TLS enabled with ssl: true or an ssl object whose rejectUnauthorized value is not false, a password set, no ssl.ca configured, and client_ed25519 negotiated as the authentication plugin. Under those conditions, a legitimate server, malicious server, or network attacker presenting a self-signed certificate can reach this path and cause a synchronous ReferenceError to escape the socket data handler. Under Node.js default uncaught-exception behavior, the client process terminates, causing denial of service. Configurations using a provided CA, rejectUnauthorized: false, another authentication plugin, or a Unix socket do not reach this vulnerable path. This issue is fixed in version 3.5.4.

[ Fixes ]Fixes and patches

  • mariadb 3.5.4Fixed version · GitHub Advisories · npm package mariadb: upgrade to 3.5.4 or later (affected >= 3.3.0, < 3.5.4)

[ Advisories ]Government CERT advisories

[ Packages ]Affected open-source packages

[ References ]References