CVE-2026-44172 MariaDB: mysql_real_escape_string() incorrectly handled big5
Attackers can execute SQL injection attacks in MariaDB when using big5 character set with unvalidated input, bypassing escape functions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-44172?
CVE-2026-44172 is a medium-severity SQL injection vulnerability in Mariadb Mariadb, published on 12 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-89
Which versions are affected by CVE-2026-44172?
4 open source packages ship an affected version, including mariadb, mariadb-min and mysql-client. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
mariadb Bitnami | From 3.3.18 | 10.4.34 |
mariadb PyPI | All versions to 3.3.18 | None |
mariadb-min Bitnami | From 3.3.18 | 10.6.23 |
mysql-client Bitnami | From 3.3.18 | 10.6.17 |
Linux distribution packages (36)
mariadb-connector-c AlmaLinux:10 | All versions | 3.4.4-2.el10_2 |
mariadb-connector-c-config AlmaLinux:10 | All versions | 3.4.4-2.el10_2 |
mariadb-connector-c-devel AlmaLinux:10 | All versions | 3.4.4-2.el10_2 |
mariadb-connector-c-doc AlmaLinux:10 | All versions | 3.4.4-2.el10_2 |
mariadb-connector-c-test AlmaLinux:10 | All versions | 3.4.4-2.el10_2 |
mariadb-connector-c AlmaLinux:8 | All versions | 3.1.11-3.el8_10 |
mariadb-connector-c-config AlmaLinux:8 | All versions | 3.1.11-3.el8_10 |
mariadb-connector-c-devel AlmaLinux:8 | All versions | 3.1.11-3.el8_10 |
mariadb-connector-c AlmaLinux:9 | All versions | 3.2.6-2.el9_8 |
mariadb-connector-c-config AlmaLinux:9 | All versions | 3.2.6-2.el9_8 |
mariadb-connector-c-devel AlmaLinux:9 | All versions | 3.2.6-2.el9_8 |
mariadb-connector-c-doc AlmaLinux:9 | All versions | 3.2.6-2.el9_8 |
mariadb-connector-c-test AlmaLinux:9 | All versions | 3.2.6-2.el9_8 |
mariadb-connector-c Red Hat:enterprise_linux:10.2 | All versions | 0:3.4.4-2.el10_2 |
mariadb-connector-c-config Red Hat:enterprise_linux:10.2 | All versions | 0:3.4.4-2.el10_2 |
mariadb-connector-c-debuginfo Red Hat:enterprise_linux:10.2 | All versions | 0:3.4.4-2.el10_2 |
mariadb-connector-c-debugsource Red Hat:enterprise_linux:10.2 | All versions | 0:3.4.4-2.el10_2 |
mariadb-connector-c-devel Red Hat:enterprise_linux:10.2 | All versions | 0:3.4.4-2.el10_2 |
mariadb-connector-c-devel-debuginfo Red Hat:enterprise_linux:10.2 | All versions | 0:3.4.4-2.el10_2 |
mariadb-connector-c-doc Red Hat:enterprise_linux:10.2 | All versions | 0:3.4.4-2.el10_2 |
mariadb-connector-c-test Red Hat:enterprise_linux:10.2 | All versions | 0:3.4.4-2.el10_2 |
mariadb-connector-c-test-debuginfo Red Hat:enterprise_linux:10.2 | All versions | 0:3.4.4-2.el10_2 |
mariadb-connector-c Red Hat:enterprise_linux:8::appstream | All versions | 0:3.1.11-3.el8_10 |
mariadb-connector-c-config Red Hat:enterprise_linux:8::appstream | All versions | 0:3.1.11-3.el8_10 |
mariadb-connector-c-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.1.11-3.el8_10 |
mariadb-connector-c-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:3.1.11-3.el8_10 |
mariadb-connector-c-devel Red Hat:enterprise_linux:8::appstream | All versions | 0:3.1.11-3.el8_10 |
mariadb-connector-c-devel-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.1.11-3.el8_10 |
mariadb-connector-c Red Hat:enterprise_linux:9::appstream | All versions | 0:3.2.6-2.el9_8 |
mariadb-connector-c-config Red Hat:enterprise_linux:9::appstream | All versions | 0:3.2.6-2.el9_8 |
mariadb-connector-c-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:3.2.6-2.el9_8 |
mariadb-connector-c-debugsource Red Hat:enterprise_linux:9::appstream | All versions | 0:3.2.6-2.el9_8 |
mariadb-connector-c-devel Red Hat:enterprise_linux:9::appstream | All versions | 0:3.2.6-2.el9_8 |
mariadb-connector-c-devel-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:3.2.6-2.el9_8 |
mariadb-connector-c-test-debuginfo Red Hat:enterprise_linux:9::appstream | All versions | 0:3.2.6-2.el9_8 |
mariadb-connector-c-debuginfo Red Hat:enterprise_linux:9::crb | All versions | 0:3.2.6-2.el9_8 |
Products include Mariadb Mariadb, Redhat Enterprise Linux.
How do I fix CVE-2026-44172?
Upgrade mariadb to 10.4.34 or later.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-44172 being exploited?
There is no known exploitation of CVE-2026-44172 in the wild and no public exploit code.
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- CVE-2026-49261 MariaDB server has unsafe parameter handling in `wsrep_notify_cmd`
- CVE-2026-85746 MariaDB: Out-of-bound buffer write on in `ST_AsText` of nested GeometryCollections
- CVE-2026-85748 MariaDB: Use-after-free with a large number of SYS_REFCURSOR's
- CVE-2026-92262 MariaDB: Numerous issues caused by historical #mysql50# tablename encoding bypass.
- CVE-2023-26785 Code injection in n/a
Sources
Also known as ALPINE-CVE-2026-44172, ALSA-2026:43505, ALSA-2026:75673, ALSA-2026:75674, BELL-CVE-2026-44172, BIT-mariadb-2026-44172 and 32 more.