CVE-2026-44172 PUBLISHED

MariaDB: mysql_real_escape_string() incorrectly handled big5

Assigner: GitHub_M
Reserved: 05.05.2026 Published: 12.06.2026 Updated: 12.06.2026

MariaDB server is a community developed fork of MySQL server. In versions 3.3.18 and 3.4.8, an application that was taking non-validated user input, escaping it with mysql_real_escape_string() and sending it to the database using text protocol and big5 character set was vulnerable to SQL injections, even though mysql_real_escape_string() was supposed to prevent them. This issue has been patched in versions 3.3.19 and 3.4.9.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CVSS Score: 6.9

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	MariaDB
Product	server
Versions	Version = 3.3.18 is affected Version = 3.4.8 is affected

References

Problem Types

CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') CWE