CVE-2026-119277
MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases
- Risk score
- 41/100
- CVSS
- 5.9 v3.1
- Exploit chance (30 days)
- 0.4%
- Published
- 29 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 b…
- Affected
- See advisory
- Fix
- Upgrade the product to 3.3.7, 3.4.5 or 3.5.11 (whichever matches your release line), or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 5.9 medium
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
- https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.5.11
- https://github.com/mariadb-corporation/mariadb-connector-j/security/advisories/GHSA-wfxr-v78w-p49r
Original description
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.
Last activity 29 Oct 2026. Patch Forecast updates every hour.