CyberRota Analysis
AI-GeneratedThe MariaDB Connector/R2DBC prior to version 1.4.1 is vulnerable to character set mismatches, leading to silent data corruption when the server changes the character set mid-session. This flaw can affect applications relying on accurate data exchange between Java clients and MariaDB/MySQL servers, particularly in environments where character set configurations may vary. Organizations using affected versions should prioritize upgrading to version 1.4.1 to mitigate the risk of data integrity issues.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
MariaDB Connector/R2DBC is a non-blocking MariaDB and MySQL client implemented in Java. Prior to 1.4.1, org.mariadb:r2dbc-mariadb encodes and decodes all character data under the assumption that the connection character set is UTF-8. A server can announce a mid-session change to character_set_client through the OK-packet session-state-tracking mechanism, including through SET NAMES executed by a stored routine or trigger, server configuration, or a hostile or man-in-the-middle server. If the new character set is not UTF-8, the driver continues to exchange UTF-8 while the server interprets the same bytes under a different encoding, causing silent data corruption and a client/server charset-confusion mismatch that can defeat byte-wise quoting or escaping. The fix accepts only utf8, utf8mb3, or utf8mb4 after initialization; any other value raises R2dbcNonTransientResourceException with SQLState 08000 and closes the connection. This issue is fixed in version 1.4.1.