What is CVE-2026-119281?

CVE-2026-119281 is a medium-severity vulnerability in Mariadb-Corporation Mariadb-Connector-J, classified under CWE-838. CVSS score: 5.9/10. Published 2026-10-29.

How severe is CVE-2026-119281?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Mariadb-Corporation Mariadb-Connector-J

CVE-2026-119281

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, the connector assumed result bytes were UTF-8 but guarded only changes to character_set_client. It did not reject non-UTF-8 character_set_results changes and relied on the server's global session_track_system_variables configuration to report character-set changes. A malicious or compromised server, or a machine-in-the-middle attacker, could suppress tracking or change the result charset so application strings differed from the returned bytes, potentially defeating application-side validation or escaping that depended on the decoded values. This issue is fixed in versions 3.3.7, 3.4.5, and 3.5.11.

Published 2026-10-29.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Mariadb-Corporation Mariadb-Connector-J — versions >= 3.0.0, < 3.3.7, >= 3.4.0, < 3.4.5, >= 3.5.0, < 3.5.11

Weakness classification (CWE)

CWE-838

References

Frequently asked questions

What is CVE-2026-119281?: CVE-2026-119281 is a medium-severity vulnerability in Mariadb-Corporation Mariadb-Connector-J, classified under CWE-838. CVSS score: 5.9/10. Published 2026-10-29.
How severe is CVE-2026-119281?: Medium severity. CVSS v3 base score is 5.9 out of 10.