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CVE-2026-107382— MariaDB Connector/Node.js: Uncaught exception crashes the client during ed25519 authentication with zero-configuration TLS

Quick assessment

Affected
mariadb-corporation mariadb-connector-nodejs
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MariaDB Connector/Node.js 用于连接在 Node.js 上开发的应用程序与 MariaDB 和 MySQL 数据库。从版本 3.3.0 到 3.5.4，零配置 TLS 指纹验证路径通过 Authentication.validateFingerPrint 调用了 Ed25519PasswordAuth.hash()，但 Ed25519PasswordAuth.hash() 引用了一个作用域外的种子标识符（seed identifier）。 要利用此漏洞，需要满足以下条件： 1. 通过 TCP

CVSS 5.9 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
mariadb-corporation mariadb-connector-nodejs >= 3.3.0, < 3.5.4 affected
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I. Basic Information for CVE-2026-107382

Vulnerability Information
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Vulnerability Title
MariaDB Connector/Node.js: Uncaught exception crashes the client during ed25519 authentication with zero-configuration TLS
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未捕获的异常
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
mariadb-corporation mariadb-connector-nodejs >= 3.3.0, < 3.5.4 -

II. Public POCs for CVE-2026-107382

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III. Intelligence Information for CVE-2026-107382

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Patches & Fixes for CVE-2026-107382 (1)

Other References for CVE-2026-107382 (2)

Same Patch Batch · mariadb-corporation · 2026-10-08 · 4 CVEs total

CVE-2026-107384 8.1 HIGH MariaDB Connector/Node.js: SQL injection through object keys in SET expansion (permitSetMu
CVE-2026-107383 7.5 HIGH MariaDB Connector/Node.js exposes uninitialized process memory through malformed GeoJSON p
CVE-2026-107385 7.4 HIGH MariaDB Connector/Node.js: SQL injection in the text protocol when the session uses NO_BAC

IV. Related Vulnerabilities

Same product: mariadb-connector-nodejs
Same vendor: mariadb-corporation
Same weakness: CWE-248

V. Comments for CVE-2026-107382

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