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CVE-2026-32710— Heap-based Buffer Overflow in MariaDB

Quick assessment

Affected
MariaDB server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MariaDB是MariaDB开源的一个开源的关系型数据库管理系统。 MariaDB 11.4.10之前版本、11.8.6之前版本和12.2.2之前版本存在安全漏洞，该漏洞源于JSON_SCHEMA_VALID函数存在缺陷，可能导致崩溃或远程代码执行。

CVSS 8.6 · High EPSS 0.80% · P55
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I. Basic Information for CVE-2026-32710

Vulnerability Information
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Vulnerability Title
Heap-based Buffer Overflow in MariaDB
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
MariaDB 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MariaDB是MariaDB开源的一个开源的关系型数据库管理系统。 MariaDB 11.4.10之前版本、11.8.6之前版本和12.2.2之前版本存在安全漏洞，该漏洞源于JSON_SCHEMA_VALID函数存在缺陷，可能导致崩溃或远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
MariaDB server >= 11.4.1, < 11.4.10 -

II. Public POCs for CVE-2026-32710

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III. Intelligence Information for CVE-2026-32710

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Vendor Advisories for CVE-2026-32710 (2)

IV. Related Vulnerabilities

Same product: server
Same vendor: MariaDB
Same weakness: CWE-122

V. Comments for CVE-2026-32710

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