MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. From 3.0.0 until 3.3.7 and 3.4.5, during caching_sha2_password authentication, the authentication-more-data response was treated as a length-encoded byte array, memory was allocated from the server-declared length, and authResult[0] was accessed without ensuring a byte existed. A malicious or compromised server, or a machine-in-the-middle attacker, could declare a very large length or send an empty response before any password was transmitted. The malformed packet could cause excessive allocation or an unchecked ArrayIndexOutOfBoundsException escaping from DriverManager.getConnection(). This issue is fixed in versions 3.3.7 and 3.4.5.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 5.9 · mariadb-corporationNVD modified 2026-10-29 20:50
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 5
- https://github.com/mariadb-corporation/mariadb-connector-j/security/advisories/GHSA-r9vh-xh4r-j6gr x_refsource_confirm
- https://github.com/mariadb-corporation/mariadb-connector-j/commit/1e32b7010485f090cc402528c334301432495fbe x_refsource_misc
- https://github.com/mariadb-corporation/mariadb-connector-j/commit/86a90b0dc9746aa3bd4aa1df264be22a2d1b7d98 x_refsource_misc
- https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.3.7 x_refsource_misc
- https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.5 x_refsource_misc