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CVE-2026-119210— MariaDB Connector/J: LOAD DATA LOCAL INFILE file check could be satisfied by text inside quoted identifiers, letting a malicious server read client files

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 3.0.0 至 3.3.7、3.4.5 和 3.5.11 版本中，ClientMessage.validateLocalFileName() 检查使用了一个正则表达式，该表达式可能匹配位于引号标识符、字符串字面量或注释中的 "LOAD DATA LOCAL INFILE" 文本，而非要求其为真实语句。恶意或已被攻陷的服务器，或中间人攻击者，可返回精心构造的数据库或表标识符，这些标识符会被连接器

CVSS 5.9 · Medium
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I. Basic Information for CVE-2026-119210

Vulnerability Information
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Vulnerability Title
MariaDB Connector/J: LOAD DATA LOCAL INFILE file check could be satisfied by text inside quoted identifiers, letting a malicious server read client files
Source: CVE Program / CVE List V5
Vulnerability Description
MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. From 3.0.0 until 3.3.7, 3.4.5, and 3.5.11, the ClientMessage.validateLocalFileName() check used a regular expression that could match LOAD DATA LOCAL INFILE text inside quoted identifiers, string literals, or comments instead of requiring a real statement. A malicious or compromised server, or a machine-in-the-middle attacker, could return crafted database or table identifiers that the connector reused in metadata or updatable-result queries, then answer with a LOCAL INFILE request for a client file. With allowLocalInfile enabled, this caused the connector to stream any readable client-host file named by the crafted text, including through DatabaseMetaData.getImportedKeys(), DatabaseMetaData.getExportedKeys(), or ResultSet.updateRow() paths. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.11.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
mariadb-corporation mariadb-connector-j >= 3.0.0, < 3.3.7 -

II. Public POCs for CVE-2026-119210

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III. Intelligence Information for CVE-2026-119210

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Other References for CVE-2026-119210 (7)

Same Patch Batch · mariadb-corporation · 2026-10-29 · 7 CVEs total

CVE-2026-119281 5.9 MEDIUM MariaDB Connector/J: Server could switch character_set_results away from UTF-8 without the
CVE-2026-119276 5.9 MEDIUM MariaDB Connector/J: Rogue server can drive large heap allocations from server-declared le
CVE-2026-119279 5.9 MEDIUM MariaDB Connector/J: Length-encoded integers larger than Integer.MAX_VALUE were truncated
CVE-2026-119277 5.9 MEDIUM MariaDB Connector/J: Rogue server can make the client read past the packet through server-
CVE-2026-119278 5.9 MEDIUM MariaDB Connector/J: Rogue server can crash the client during caching_sha2_password authen
CVE-2026-119280 3.7 LOW MariaDB Connector/J : XA recover() trusted server-supplied gtrid and bqual lengths

IV. Related Vulnerabilities

Same product: mariadb-connector-j
Same vendor: mariadb-corporation
Same weakness: CWE-20