CVE-2026-32710
Heap-based Buffer Overflow in MariaDB
9.9
CRITICAL
CVSS 3.1
EPSS 0.11%
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.
How to fix CVE-2026-32710
To remediate CVE-2026-32710, upgrade the affected package to a fixed version below.
- —upgrade to 11.4.10 or later
- —upgrade to 11.4.10 or later
- —upgrade to 11.4.10 or later
- —upgrade to 1:11.8.6-0+deb13u1 or later
Is CVE-2026-32710 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- >= 11.4.1, < 11.4.10, >= 11.8.1, < 11.8.6, >= 12.1.2, < 12.2.2
- >= 11.4.1, < 11.4.10, >= 11.8.1, < 11.8.6, >= 12.1.2, < 12.2.2
- >= 11.4.1, < 11.4.10, >= 11.8.1, < 11.8.6, >= 12.1.2, < 12.2.2
- from 0, < 1:11.8.6-0+deb13u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |