Is CVE-2026-85748 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-85748?

CVE-2026-85748 has a CVSS v3 severity of CRITICAL (9.9).

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CVE-2026-85748

Description

MariaDB server is a community developed fork of MySQL server. From 12.3.1 until 12.3.3 and 13.0.2, SYS_REFCURSOR handling is affected because cursor-array reallocation can leave stale references in routine contexts. A low-privileged attacker can open a large number of SYS_REFCURSORs and then fetch one to trigger a use-after-free that can enable remote code execution when combined with another vulnerability. This issue is fixed in versions 12.3.3 and 13.0.2.