critical9.9
CVE-2026-85748
MariaDB server is a community developed fork of MySQL server.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mariadb | Mariadb | from 12.3.1 before 12.3.3 Version 13.0.1 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/MariaDB/server/commit/91156c3de58762196605150ab3f756fe952592d1
- https://github.com/MariaDB/server/commit/9b075b2cb53338f67e7230cc585e02d2d34514ed
- https://github.com/MariaDB/server/releases/tag/mariadb-12.3.3
- https://github.com/MariaDB/server/releases/tag/mariadb-13.0.2
- https://github.com/MariaDB/server/security/advisories/GHSA-mv8g-9f7q-hprm
- https://jira.mariadb.org/browse/MDEV-40396
- https://jira.mariadb.org/browse/MDEV-40639