Vulnerability in MariaDB Server's MySQL JSON Plugin Enabling Out-of-Bounds Reads
CVE-2026-107817

4.4MEDIUM

Key Information:

Vendor

Mariadb

Status
Vendor
CVE Published:
9 October 2026

What is CVE-2026-107817?

The MySQL JSON plugin in MariaDB Server, versions 10.6.1 through 10.6.28, as well as 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, incorrectly assumes imported MySQL tables contain valid MySQL binary JSON data. Attackers can exploit this flaw by providing specially crafted MySQL tables with invalid JSON data, potentially leading to out-of-bounds reads, information disclosure, or even causing the server to crash. Required fixes are included in subsequent updates, specifically versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.

Affected Version(s)

server >= 10.6.1, < 10.6.28 < 10.6.1, 10.6.28

server >= 10.11.1, < 10.11.19 < 10.11.1, 10.11.19

server >= 11.4.1, < 11.4.13 < 11.4.1, 11.4.13

References

CVSS V3.1

Score:
4.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.