CVE-2026-119277

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, decoders for OK packet session-state blocks, column definition packets, text row data, or binary row data used server-declared lengths without confirming that the requested bytes remained in the receive buffer. The decoders could position reads, create sub-buffers, or decode strings beyond the packet boundary. A malicious or compromised server, or a machine-in-the-middle attacker, could trigger unchecked ArrayIndexOutOfBoundsException or IllegalArgumentException failures inside JDBC calls and terminate connection handling. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.11.

CVSS 3.1

5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CWEs

CWE-125, CWE-130

Published

2026-10-29

Modified

2026-10-29

Record from

the NVD, synced 2026-10-29

References

• https://github.com/mariadb-corporation/mariadb-connector-j/commit/49c92adfcf816853e324031ba9762a69444cfd12
• https://github.com/mariadb-corporation/mariadb-connector-j/commit/52538206298db39062ad67939f1446b767cacde4
• https://github.com/mariadb-corporation/mariadb-connector-j/commit/ea8c7b6537e50053444188a9a3fd9cae99550f56
• https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.3.7
• https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.5

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