CVE-2026-44172
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Description
A flaw was found in MariaDB server. An application processing non-validated user input, which then uses mysql_real_escape_string() and sends data to the database via text protocol with the big5 character set, is vulnerable to SQL injection. This allows a remote attacker to execute malicious SQL commands, potentially leading to unauthorized data access or modification within the database.
Statement
This is an Important SQL injection vulnerability in MariaDB server affecting applications that utilize mysql_real_escape_string() with non-validated user input and the big5 character set. Exploitation allows a remote attacker to execute arbitrary SQL commands, potentially compromising data integrity and confidentiality within the database. The specific configuration required for exploitation limits its widespread impact, but systems configured in this manner are at significant risk.
Additional information
- This content is not included.Bugzilla 2488459: mariadb: MariaDB server: SQL injection vulnerability via improper handling of big5 character set with mysql_real_escape_string()
- Content from cwe.mitre.org is not included.CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Affected Packages and Issued Red Hat Security Errata
Unless explicitly stated as not affected, all previous versions of packages in any minor update stream of a product listed here should be assumed vulnerable, although may not have been subject to full analysis.
| Products / Services | Components | State | Errata |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | mariadb-connector-c | Affected | |
| Red Hat Enterprise Linux 10 | mariadb10.11 | Not affected | |
| Red Hat Enterprise Linux 10 | mariadb11.8 | Not affected | |
| Red Hat Enterprise Linux 7 | mariadb | Not affected | |
| Red Hat Enterprise Linux 8 | mariadb-connector-c | Not affected | |
| Red Hat Enterprise Linux 8 | mariadb:10.11/mariadb | Not affected | |
| Red Hat Enterprise Linux 8 | mariadb:10.3/mariadb | Not affected | |
| Red Hat Enterprise Linux 9 | mariadb-connector-c | Affected | |
| Red Hat Enterprise Linux 9 | mariadb | Not affected | |
| Red Hat Enterprise Linux 9 | mariadb:10.11/mariadb | Not affected | |
| Red Hat Enterprise Linux 9 | mariadb:11.8/mariadb | Not affected | |
| Red Hat Hardened Images | mariadb-connector-c-main | Fixed | RHSA-2026:30135 |
| Red Hat Hardened Images | mariadb10.11 | Not affected | |
| Red Hat Hardened Images | mariadb11.8 | Not affected |
Common Vulnerability Scoring System (CVSS) Score Details
Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authorities (CNA) source for its products and services (see Red Hat classifications ).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| CVSS v3 Base Score | 9.1 | 9.1 | 9.1 |
| Attack Vector | Network | Network | Network |
| Attack Complexity | Low | Low | Low |
| Privileges Required | None | None | None |
| User Interaction | None | None | None |
| Scope | Unchanged | Unchanged | Unchanged |
| Confidentiality Impact | High | High | High |
| Integrity Impact | High | High | High |
| Availability Impact | None | None | None |
CVSS v3 Vector
Red Hat CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
cve.org CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Frequently Asked Questions
Why is Red Hat's CVSS v3 score or Impact different from other vendors?
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My product is listed as "Under investigation" or "Affected", when will Red Hat release a fix for this vulnerability?
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- Upgrade to a supported product version that includes a fix for this vulnerability (recommended).
- Apply a mitigation (if one exists).
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What can I do if my product is listed as "Fix deferred"?
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- Open a This content is not included.support case to request a prioritization of releasing a fix for this vulnerability.
- Red Hat Engineering focuses on addressing high-priority issues based on their complexity or limited lifecycle support. Therefore, lower-priority issues will not receive immediate fixes.
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