MariaDB has possible SQL injection in Buffer parameter escaping under big5/gbk/sjis/cp932/gb18030 client charsets

Summary A SQL injection is possible when the connector escapes Buffer parameters client-side under a multi-byte client character set whose trail-byte range overlaps the ASCII backslash 0x5C: big5, gbk, sjis, cp932, and gb18030. Under these charsets, an attacker-controlled lead byte can absorb the...

CVE-2026-55855

MariaDB Connector/Node.js is vulnerable to SQL injection when attacker-controlled Buffer parameters are escaped client-side under the big5, gbk, sjis, cp932, or gb18030 character sets. The root cause is in PacketOutputStream.writeBufferEscape (lib/io/packet-output-stream.js), which escaped bytes ...

CVE-2026-55855 MariaDB Connector/Node.js: Possible SQL injection in Buffer parameter escaping under big5/gbk/sjis/cp932/gb18030 client charsets

MariaDB Connector/Node.js is used to connect applications developed on Node.js to MariaDB and MySQL databases. Prior to 3.2.4, 3.3.3, 3.4.6, and 3.5.3, MariaDB Connector/Node.js permits SQL injection when attacker-controlled Buffer parameters are escaped client-side under the big5, gbk, sjis,...

PT-2026-83374

Name of the Vulnerable Software and Affected Versions MariaDB Connector/J versions prior to 2.7.14 MariaDB Connector/J versions prior to 3.3.5 MariaDB Connector/J versions prior to 3.4.3 MariaDB Connector/J versions prior to 3.5.9 Description The connector encodes and decodes protocol text and...

PT-2026-83349

Name of the Vulnerable Software and Affected Versions MariaDB Connector/Node.js versions prior to 3.2.4 MariaDB Connector/Node.js versions prior to 3.3.3 MariaDB Connector/Node.js versions prior to 3.4.6 MariaDB Connector/Node.js versions prior to 3.5.3 Description SQL injection is possible when...