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CVE-2026-32710

CRITICAL CVSS 3.1: 9.9 EPSS 0.10%
Updated Mar 31, 2026
MySQL
Parameter Value
CVSS 9.9 (CRITICAL)
Affected Versions 11.4.1 — 11.8.6
Fixed In 11.4.10
Type CWE-122 (Heap-based Buffer Overflow)
Vendor MySQL
Public PoC No

MariaDB server is a community developed fork of MySQL server. An authenticated user can crash MariaDB versions 11.4 before 11.4.10 and 11.8 before 11.8.6 via a bug in JSON_SCHEMA_VALID() function. Under certain conditions it might be possible to turn the crash into a remote code execution.

These conditions require tight control over memory layout which is generally only attainable in a lab environment. This issue is fixed in MariaDB 11.4.10, MariaDB 11.8.6, and MariaDB 12.2.2.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Vulnerable Products 3

Configuration From (including) Up to (excluding)
Mariadb Mariadb
cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*
11.4.1 11.4.10
Mariadb Mariadb
cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*
11.8.1 11.8.6
Mariadb Mariadb
cpe:2.3:a:mariadb:mariadb:12.1.2:*:*:*:*:*:*:*