MariaDB Corporation MariaDB Connector/J up to 3.3.6/3.4.4/3.5.10 Local File Name Validation ClientMessage.validateLocalFileName input validation

Summaryinfo

A vulnerability labeled as problematic has been found in MariaDB Corporation MariaDB Connector and J up to 3.3.6/3.4.4/3.5.10. Impacted is the function ClientMessage.validateLocalFileName of the component Local File Name Validation. Such manipulation leads to input validation. This vulnerability is traded as CVE-2026-119210. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in MariaDB Corporation MariaDB Connector and J up to 3.3.6/3.4.4/3.5.10 and classified as problematic. Affected by this issue is the function ClientMessage.validateLocalFileName of the component Local File Name Validation. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality. CVE summarizes:

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.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-119210 since 10/29/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit.

Upgrading to version 3.3.7, 3.4.5 or 3.5.11 eliminates this vulnerability.

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Productinfo

Type

• Database Software

Vendor

• MariaDB Corporation

Name

• J
• MariaDB Connector

Version

• 3.3.0
• 3.3.1
• 3.3.2
• 3.3.3
• 3.3.4
• 3.3.5
• 3.3.6
• 3.4.0
• 3.4.1
• 3.4.2
• 3.4.3
• 3.4.4
• 3.5.0
• 3.5.1
• 3.5.2
• 3.5.3
• 3.5.4
• 3.5.5
• 3.5.6
• 3.5.7
• 3.5.8
• 3.5.9
• 3.5.10

License

• open-source

CPE 2.3info

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CPE 2.2info

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