CVE-2026-55854
Reported by GitHub_M · Published August 28, 2026
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.
Risk Scores
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| mariadb-corporation | mariadb-connector-nodejs | < 3.2.4, >= 3.3.0, < 3.3.3, >= 3.4.0, < 3.4.6 |
| mariadb-corporation | mariadb-connector-nodejs | 0, 3.5.0, 3.4.0 |
| chainguard | sqlpad | 0 |
| wolfi | sqlpad | 0 |
| npm | mariadb | 3.5.0, 3.4.0, 3.3.0 |
Timeline
- Aug 28, 2026 CVE Published
- Aug 29, 2026 EPSS Score
- Aug 29, 2026 Coalition ESS Score
- Sep 1, 2026 Security Advisory
- Sep 5, 2026 EPSS Score
- Sep 9, 2026 EPSS Score
- Sep 12, 2026 EPSS Score
- Sep 16, 2026 EPSS Score
- Sep 18, 2026 EPSS Score
- Sep 24, 2026 EPSS Score
- Sep 26, 2026 EPSS Score
- Sep 30, 2026 EPSS Score
References
- https://github.com/mariadb-corporation/mariadb-connector-nodejs/security/advisories/GHSA-42r5-vhpq-m858 x_refsource_CONFIRM
- https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/29733403cfe6519cdfe9c36c93765a468fbe285d x_refsource_MISC
- https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/53b304264df84496d331dba2765c3634602f342e x_refsource_MISC
- https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/9781de636841d34afdd08d81dd07d43edb82f85c x_refsource_MISC
- https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/fbc159c2c8bd18c2db2d2e6587ab3020bbda64b6 x_refsource_MISC
- https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.2.4 x_refsource_MISC
- https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.3.3 x_refsource_MISC
- https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.4.6 x_refsource_MISC
- https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.5.3 x_refsource_MISC
- https://jira.mariadb.org/browse/CONJS-353 x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-55854 advisory
- https://github.com/advisories/GHSA-42r5-vhpq-m858 advisory