High 8.6Published Mar 20, 2026

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

Updated under an hour ago (Oct 27, 2026, 4:50 PM ET)

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It affects MariaDB server and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for MariaDB server

Exploited in the last 30 days

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.

CVSS: 8.6 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE): CWE-122
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Mar 26, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

MariaDB server mariadb:server (from the name)	from 11.4.1, < 11.4.10; from 11.8.1, < 11.8.6; from 12.1.2, < 12.2.2	CNA record
mariadb mariadb mariadb:mariadb	from 11.4.1 before 11.4.10; from 11.8.1 before 11.8.6; 12.1.2	NVD

References

References

https://github.com/MariaDB/server/security/advisories/GHSA-4rj5-2227-9wgc	x-refsource-confirm, vendor-advisory
https://jira.mariadb.org/browse/MDEV-38356	x-refsource-misc, issue-tracking, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.