CVE WatchOct 13, 2026

CVE-2026-107819

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 M

CVSS

5.9

Medium

EPSS

0.2%

p15

KEV

—

Exploit Today

0-100

Published: Oct 9, 2026 · Last modified: Oct 13, 2026 · CWE-297

EPSS · 30d

0.2%EPSS · 30 days0.2%

2026-10-102026-10-21

Technical description

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.

Official references

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