MariaDB: mysql_real_escape_string() incorrectly handled big5
CVE-2026-44172

6.9MEDIUM

Key Information:

Vendor

Mariadb

Status
Server
Vendor
CVE Published:
12 June 2026

What is CVE-2026-44172?

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.

Affected Version(s)

server = 3.3.18 = 3.3.18

server = 3.4.8 = 3.4.8

References

https://github.com/MariaDB/server/security/advisories/GHS...
x_refsource_CONFIRM
https://jira.mariadb.org/browse/CONC-819
x_refsource_MISC

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.