CVE-2026-85748
MariaDB server
Published 16 Oct 2026 · updated 16 Oct 2026 · Awaiting Analysis
9.9 Critical · CVSS 3.1, github.com
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.
References
- github.com/MariaDB/server/commit/91156c3de58762196605150ab3f756fe952592d1
- github.com/MariaDB/server/commit/9b075b2cb53338f67e7230cc585e02d2d34514ed
- github.com/MariaDB/server/releases/tag/mariadb-12.3.3
- github.com/MariaDB/server/releases/tag/mariadb-13.0.2
- github.com/MariaDB/server/security/advisories/GHSA-mv8g-9f7q-hprm
- jira.mariadb.org/browse/MDEV-40396
- jira.mariadb.org/browse/MDEV-40639