---
id: CVE-2026-107821
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, MariaDB
  insufficiently validated counts, offsets, lengths, and field boundaries in FRM
  metadata while…
severity: high
cvss: 8
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-1285
published: '2026-10-09'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T18:17:03.860'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107821'
references:
  - url: >-
      https://github.com/MariaDB/server/commit/3b1c2e58abab5571bec4ff52773ddc75b1738da9
    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-c4gx-34mg-95q5'
    label: security-advisories@github.com
  - url: 'https://jira.mariadb.org/browse/MDEV-40571'
    label: security-advisories@github.com
tags:
  - nvd
ingestedAt: '2026-10-09T19:09:33.753Z'
---

## 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, MariaDB insufficiently validated counts, offsets, lengths, and field boundaries in FRM metadata while opening binary FRM files. An attacker able to place a crafted FRM file in the data directory could trigger out-of-bounds reads or writes, crash the server, or potentially execute code. 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.