CVE Catalog

CVE-2026-107819

MediumCVSS 5.9
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.19%

8th percentile - higher than 8% of all known CVEs

Summary

MariaDB Connector/C from 3.4.1 to 3.4.10 has a vulnerability in the SSL authentication-switch logic that fails to reject TLS hostname mismatch before selecting a non-hashing authentication plugin. An active man-in-the-middle attacker could obtain the database password.

Risk Assessment

An attacker could intercept database credentials, leading to unauthorized data access and potential data breaches.

Recommendation

Update MariaDB Connector/C to version 3.4.10 or later. Ensure proper TLS verification is enforced.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS