{"id":"CVE-2026-119281","published":"2026-10-29T21:17:21.710","lastModified":"2026-10-29T21:17:21.710","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, 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.","cvssScore":5.9,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","cwes":["CWE-838"],"vendors":[],"products":[],"references":[{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/commit/af5e565eb171cfc66ea8e948ddc616abed0c4623","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/commit/d51b968c1b795c73d24e0b3f960205b7bc82d423","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/commit/fdabe74a7df6dce1d6c099f4d0ca1e2acc25919a","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.3.7","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.5","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.5.11","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/security/advisories/GHSA-grfq-r75j-rw9x","tags":[]}],"exploitRefs":[{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/commit/af5e565eb171cfc66ea8e948ddc616abed0c4623","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/commit/d51b968c1b795c73d24e0b3f960205b7bc82d423","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/commit/fdabe74a7df6dce1d6c099f4d0ca1e2acc25919a","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.3.7","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.4.5","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/releases/tag/3.5.11","tags":[]},{"url":"https://github.com/mariadb-corporation/mariadb-connector-j/security/advisories/GHSA-grfq-r75j-rw9x","tags":[]}],"hasPoc":true,"ai":null}