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

Q: What is the severity of CVE-2026-32710?

CVE-2026-32710 is classified as a high severity vulnerability due to its potential to crash the MariaDB server.

Q: How do I fix CVE-2026-32710?

To mitigate CVE-2026-32710, upgrade MariaDB to version 11.4.10 or later, or 11.8.6 or later.

Q: What versions of MariaDB are affected by CVE-2026-32710?

CVE-2026-32710 affects MariaDB versions prior to 11.4.10 and 11.8.6.

Q: Can an unauthenticated user exploit CVE-2026-32710?

No, an authenticated user is required to exploit CVE-2026-32710.

Q: What is the nature of the vulnerability in CVE-2026-32710?

CVE-2026-32710 is a heap-based buffer overflow vulnerability in the JSON_SCHEMA_VALID() function of the MariaDB server.

Published Mar 20, 2026

Updated

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.

Affected Software

4 affected components

MariaDB MariaDB Server<11.4.10, <11.8.6

MariaDB MariaDB>=11.4.1<11.4.10

MariaDB MariaDB>=11.8.1<11.8.6

MariaDB MariaDB=12.1.2

Event History

Mar 20, 2026

CVE Published

via MITRE·06:31 PM

Data Sourced

via MITRE·06:31 PM

DescriptionSeverityWeakness

Data Sourced

via NVD·07:16 PM

DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

What is the severity of CVE-2026-32710?

CVE-2026-32710 is classified as a high severity vulnerability due to its potential to crash the MariaDB server.

How do I fix CVE-2026-32710?

To mitigate CVE-2026-32710, upgrade MariaDB to version 11.4.10 or later, or 11.8.6 or later.

What versions of MariaDB are affected by CVE-2026-32710?

CVE-2026-32710 affects MariaDB versions prior to 11.4.10 and 11.8.6.

Can an unauthenticated user exploit CVE-2026-32710?

No, an authenticated user is required to exploit CVE-2026-32710.

What is the nature of the vulnerability in CVE-2026-32710?

CVE-2026-32710 is a heap-based buffer overflow vulnerability in the JSON_SCHEMA_VALID() function of the MariaDB server.

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