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CVE-2026-107383— MariaDB Connector/Node.js exposes uninitialized process memory through malformed GeoJSON parameters

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 用于将基于 Node.js 开发的应用程序连接到 MariaDB 和 MySQL 数据库。在版本 3.2.5、3.3.4、3.4.7 和 3.5.4 之前，GeoJSON 的 Polygon（多边形）和 MultiPolygon（多重多边形）二进制编码器在确认环（ring）是否为数组之前，会根据每个环的数值长度分配一个 缓冲区。因此，一个构造不良的非数组环可能预留了写入循环会跳过的字节，而连接器会将整个缓冲区通过 或 方法发送，从而将未初始化的 Node.js 堆

CVSS 7.5 · High

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System

Affected Version Matrix 4

VendorProduct Version RangeStatus
mariadb-corporation mariadb-connector-nodejs < 3.2.5 affected
>= 3.3.0, < 3.3.4 affected
>= 3.4.0, < 3.4.7 affected
>= 3.5.0-rc.0, < 3.5.4 affected
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I. Basic Information for CVE-2026-107383

Vulnerability Information
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Vulnerability Title
MariaDB Connector/Node.js exposes uninitialized process memory through malformed GeoJSON parameters
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. Prior to 3.2.5, 3.3.4, 3.4.7, and 3.5.4, the GeoJSON Polygon and MultiPolygon binary encoders size a Buffer.allocUnsafe() allocation from each ring's numeric length before confirming that the ring is an array. A malformed non-array ring can therefore reserve bytes that the writing loop skips, and the connector sends the full buffer through execute() or batch(), disclosing uninitialized Node.js heap data into a database value. The persisted data can include other users' content, session material, database credentials, or TLS key material and may propagate to backups and replicas. The text-protocol query() path is not affected. This issue is fixed in versions 3.2.5, 3.3.4, 3.4.7, and 3.5.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
mariadb-corporation mariadb-connector-nodejs < 3.2.5 -

II. Public POCs for CVE-2026-107383

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III. Intelligence Information for CVE-2026-107383

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Patches & Fixes for CVE-2026-107383 (4)

Other References for CVE-2026-107383 (5)

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-2026-107385 7.4 HIGH MariaDB Connector/Node.js: SQL injection in the text protocol when the session uses NO_BAC
CVE-2026-107382 5.9 MEDIUM MariaDB Connector/Node.js: Uncaught exception crashes the client during ed25519 authentica

IV. Related Vulnerabilities

Same product: mariadb-connector-nodejs
Same vendor: mariadb-corporation
Same weakness: CWE-200

V. Comments for CVE-2026-107383

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