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CVE-2026-61700— MariaDB Connector/J does not enforce allowLocalInfile=false on server-initiated LOCAL INFILE requests

Quick assessment

Affected
mariadb-corporation mariadb-connector-j
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/J 用于将 Java 开发的应用程序连接到 MariaDB 和 MySQL 数据库。在 2.7.14、3.3.5、3.4.3 和 3.5.9 之前的版本中， 在处理服务器发起的 LOCAL INFILE 协议数据包（0xfb）时，未强制应用 配置。当应用程序发送 的 COM_QUERY 命令时，恶意服务器或中间人（Man-in-the-Middle）攻击者可以回显相同的文件名，导致连接器在已禁用该选项的情况下仍然传输该文件。需要注意的是，服务器无法将请求重定向到任意路径，只能接收

CVSS 3.7 · Low

Affected Version Matrix 4

VendorProduct Version RangeStatus
mariadb-corporation mariadb-connector-j < 2.7.14 affected
>= 3.0.0, < 3.3.5 affected
>= 3.4.0, < 3.4.3 affected
>= 3.5.0, < 3.5.9 affected
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I. Basic Information for CVE-2026-61700

Vulnerability Information
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Vulnerability Title
MariaDB Connector/J does not enforce allowLocalInfile=false on server-initiated LOCAL INFILE requests
Source: CVE Program / CVE List V5
Vulnerability Description
MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. Prior to 2.7.14, 3.3.5, 3.4.3, and 3.5.9, ClientMessage.readPacket processes a server-initiated LOCAL INFILE protocol packet 0xfb without enforcing allowLocalInfile=false. When an application sends a LOAD DATA LOCAL INFILE COM_QUERY, a rogue or man-in-the-middle server can echo the same filename and cause the connector to transmit that file despite the disabled option. The server cannot redirect the request to an arbitrary path and can receive only the exact file already selected by the application, so exploitation requires an application that actively loads sensitive data over an untrusted connection. This issue is fixed in versions 2.7.14, 3.3.5, 3.4.3, and 3.5.9.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
mariadb-corporation mariadb-connector-j < 2.7.14 -

II. Public POCs for CVE-2026-61700

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III. Intelligence Information for CVE-2026-61700

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Patches & Fixes for CVE-2026-61700 (1)

Vendor Advisories for CVE-2026-61700 (1)

Vendor Pages for CVE-2026-61700 (1)

IV. Related Vulnerabilities

Same product: mariadb-connector-j
Same vendor: mariadb-corporation
Same weakness: CWE-284

V. Comments for CVE-2026-61700

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