CVE-2026-85746
Fixed in a distro release EPSS <1%CVSS 9.9
MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, ST_AsText can write beyond an allocated output buffer when converting deeply nested GeometryCollections because recursive WKT serialization does not account for bytes consumed or reserve sufficient space. A low-privileged remote attacker can submit a specially crafted GIS object to corrupt memory and potentially achieve code execution when combined with another vulnerability. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2.
Products: MariaDB server
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | mariadb | no fix |
| Debian 13 | mariadb | no fix |
| Debian 14 | mariadb | 1:11.8.9+ds-1 |
| Ubuntu 16.04 LTS | mariadb-10.0 | no fix |
| Ubuntu 18.04 LTS | mariadb-10.1 | no fix |
| Ubuntu 20.04 LTS | mariadb-10.3 | no fix |
| Ubuntu 22.04 LTS | mariadb-10.6 | no fix |
| Ubuntu 24.04 LTS | mariadb | no fix |
| Ubuntu 26.04 LTS | mariadb | no fix |
| Ubuntu 26.10 | mariadb | no fix |
| openSUSE Tumbleweed | mariadb | 12.3.2-3.1 |