---
id: CVE-2026-107817
title: MariaDB server is a community developed fork of MySQL server
summary: >-
  MariaDB server is a community developed fork of MySQL server. From 10.6.1
  until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, the mysql_json
  plugin assumed that imported MySQL tables contained valid MySQL binary JSON
  data. A sp…
severity: medium
cvss: 4.4
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L'
cwe:
  - CWE-125
published: '2026-10-09'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T18:17:03.220'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107817'
references:
  - url: >-
      https://github.com/MariaDB/server/commit/851f52470d470a96a66e0b7e5599f3b6c2e45907
    label: security-advisories@github.com
  - url: 'https://github.com/MariaDB/server/releases/tag/mariadb-10.11.19'
    label: security-advisories@github.com
  - url: 'https://github.com/MariaDB/server/releases/tag/mariadb-10.6.28'
    label: security-advisories@github.com
  - url: 'https://github.com/MariaDB/server/releases/tag/mariadb-11.4.13'
    label: security-advisories@github.com
  - url: 'https://github.com/MariaDB/server/releases/tag/mariadb-11.8.9'
    label: security-advisories@github.com
  - url: 'https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3'
    label: security-advisories@github.com
  - url: 'https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2'
    label: security-advisories@github.com
  - url: 'https://github.com/MariaDB/server/security/advisories/GHSA-89ph-64cf-gqcc'
    label: security-advisories@github.com
  - url: 'https://jira.mariadb.org/browse/MDEV-40678'
    label: security-advisories@github.com
tags:
  - nvd
ingestedAt: '2026-10-09T19:09:33.751Z'
---

## Overview

MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, the mysql_json plugin assumed that imported MySQL tables contained valid MySQL binary JSON data. A specially prepared MySQL table containing invalid JSON data could cause out-of-bounds reads, information disclosure, or a server crash. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.