CVE-2026-107819
mediumMariaDB Connector/C is a C and C++ client library for connecting applications to MariaDB and MySQL databases.
MariaDB Connector/C is a C and C++ client library for connecting applications to MariaDB and MySQL databases. From 3.4.1 until 3.4.10, the MariaDB Connector/C libmariadb Zero-Configuration SSL authentication-switch logic checked certificate trust failure but did not reject a TLS hostname verification mismatch before selecting a non-hashing authentication plugin. An active man-in-the-middle attacker with a valid certificate for another hostname could request mysql_clear_password and obtain the database password inside the attacker-controlled TLS connection. Other MariaDB connectors are not affected. This issue is fixed in version 3.4.10.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/MariaDB/server/security/advisories/GHSA-fmq9-qjxj-qpf7 security-advisories@github.com
- https://github.com/mariadb-corporation/mariadb-connector-c/commit/e8c0a16d94ddf844668d684a... security-advisories@github.com
- https://github.com/mariadb-corporation/mariadb-connector-c/releases/tag/v3.4.10 security-advisories@github.com
- https://jira.mariadb.org/browse/CONC-846 security-advisories@github.com