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CVE-2026-55854

CVE-2026-55854 · MariaDB Connector/Node.js: Cleartext Transmission of Sensitive Information and Insufficiently Protected Credentials in mariadb

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 5.9 · Medium · EPSS 0.4% · Fix available

Published
Updated

Stack: node · database

Affected products and versions

  • mariadb-connector-nodejs

    Versions
    • < 3.2.4: Affected
    • >= 3.3.0, < 3.3.3: Affected
    • >= 3.4.0, < 3.4.6: Affected
    • >= 3.5.0, < 3.5.3: Affected

    No fix published

  • mariadb npm

    Affected ranges
    • SEMVER: < 3.2.4

    Update to 3.2.4

  • mariadb npm

    Affected ranges
    • SEMVER: ≥ 3.3.0, < 3.3.3

    Update to 3.3.3

  • mariadb npm

    Affected ranges
    • SEMVER: ≥ 3.4.0, < 3.4.6

    Update to 3.4.6

  • mariadb npm

    Affected ranges
    • SEMVER: ≥ 3.5.0, < 3.5.3

    Update to 3.5.3

Original sources

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