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OpenAdvisories
Medium · 5.9 CVE-2026-55854 BIT-mariadb-2026-55854BIT-mariadb-min-2026-55854BIT-mysql-client-2026-55854EUVD-2026-68010GHSA-42r5-vhpq-m858

MariaDB Connector/Node.js: Cleartext Transmission of Sensitive Information and Insufficiently Protected Credentials in mariadb

Published Aug 28, 2026 · Updated Aug 31, 2026 · Assigned by GitHub_M

Description

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 products

VendorProductAffectedFixed
mariadb-corporation mariadb-connector-nodejs < 3.2.4, >= 3.3.0, < 3.3.3, >= 3.4.0, < 3.4.6, >= 3.5.0, < 3.5.3 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Wolfi

ReleasePackageFixed inAdvisory
Wolfi rolling sqlpad 7.5.7-r39 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm mariadb < 3.2.4 3.2.4 GHSA-42r5-vhpq-m858
npm mariadb >= 3.3.0, < 3.3.3 3.3.3 GHSA-42r5-vhpq-m858
npm mariadb >= 3.4.0, < 3.4.6 3.4.6 GHSA-42r5-vhpq-m858
npm mariadb >= 3.5.0, < 3.5.3 3.5.3 GHSA-42r5-vhpq-m858

Advisories 1

References