MariaDB Connector/Node.js: Cleartext Transmission of Sensitive Information and Insufficiently Protected Credentials in mariadb
Summary
| CVE | CVE-2026-55854 |
|---|---|
| State | PUBLISHED |
| Assigner | GitHub_M |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-28 23:17:08 UTC |
| Updated | 2026-08-28 23:17:08 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 5.9 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Problem Types: CWE-319 | CWE-522 | CWE-319 CWE-319: Cleartext Transmission of Sensitive Information | CWE-522 CWE-522: Insufficiently Protected Credentials
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 5.9 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
| 3.1 | CNA | DECLARED | 5.9 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
HighPrivileges Required
NoneUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Mariadb-corporation | Mariadb-connector-nodejs | affected < 3.2.4 | Not specified |
| CNA | Mariadb-corporation | Mariadb-connector-nodejs | affected >= 3.3.0, < 3.3.3 | Not specified |
| CNA | Mariadb-corporation | Mariadb-connector-nodejs | affected >= 3.4.0, < 3.4.6 | Not specified |
| CNA | Mariadb-corporation | Mariadb-connector-nodejs | affected >= 3.5.0, < 3.5.3 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.2.4 | [email protected] | github.com | |
| github.com/mariadb-corporation/mariadb-connector-nodejs/commit/29733403c... | [email protected] | github.com | |
| github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.3.3 | [email protected] | github.com | |
| github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.4.6 | [email protected] | github.com | |
| github.com/mariadb-corporation/mariadb-connector-nodejs/security/advisor... | [email protected] | github.com | |
| jira.mariadb.org/browse/CONJS-353 | [email protected] | jira.mariadb.org | |
| github.com/mariadb-corporation/mariadb-connector-nodejs/commit/53b304264... | [email protected] | github.com | |
| github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.5.3 | [email protected] | github.com | |
| github.com/mariadb-corporation/mariadb-connector-nodejs/commit/9781de636... | [email protected] | github.com | |
| github.com/mariadb-corporation/mariadb-connector-nodejs/commit/fbc159c2c... | [email protected] | github.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.