CVE-2026-107817
mariadb: mariadb: Denial of Service via invalid binary JSON in mysql_json plugin
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 10, 2026
Updated · October 20, 2026
Description
A flaw was found in the mysql_json plugin in MariaDB. The plugin incorrectly assumes that imported MySQL tables contain valid binary JavaScript Object Notation (JSON) data. An attacker can exploit this issue by supplying a specially crafted MySQL table containing invalid JSON data, triggering an out-of-bounds read. This flaw can lead to sensitive information disclosure or cause the database server to crash, resulting in a Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 4.4CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
CWE-125 · Out-of-bounds Read