CVE-2026-119279

mariadb-connector-java: MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases

CVE-2026-119279 is fixed in mariadb-connector-java on 1 platform by DEBIAN-CVE-2026-119279 (version 3.5.10-1), released October 30, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.9
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0035
28th percentile

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 3.5.10, the ReadableByteBuf.readLength() and ReadableByteBuf.readIntLengthEncodedNotNull() methods narrowed the protocol's unsigned 8-byte length-encoded integer to a Java int without checking that the value fit a non-negative integer. Values above Integer.MAX_VALUE could wrap to a negative or unrelated length that downstream allocation and read paths used. A malicious or compromised server, or a machine-in-the-middle attacker, could trigger NegativeArraySizeException, out-of-bounds failures, or oversized allocation behavior in client connection handling. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.10.

Where it's fixed

ProductFixed inFixReleased
Linux
mariadb-connector-java · Debian 14 3.5.10-1 DEBIAN-CVE-2026-119279 Oct 30, 2026

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