CVE-2026-107819 (GCVE-0-2026-107819)

Vulnerability from cvelistv5 – Published: 2026-10-09 17:25 – Updated: 2026-10-09 17:59
VLAI
Title
MariaDB Connector/C: libmariadb allowed cleartext password leakage on TLS hostname verification failure
Summary
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.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 17:59 UTC
CWE
  • CWE-297 - Improper Validation of Certificate with Host Mismatch
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7595 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
MariaDB server Affected: >= 3.4.1, < 3.4.10
guessed Create a notification for this product.
Show details on NVD website
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