Critical · published October 16, 2026
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.
| Product | Versions | Fixed in |
|---|---|---|
| mariadb/mariadb | ≥ 10.6.1, < 10.6.28 | 10.6.28 |
| mariadb/mariadb | ≥ 10.11.1, < 10.11.19 | 10.11.19 |
| mariadb/mariadb | ≥ 11.4.1, < 11.4.13 | 11.4.13 |
| mariadb/mariadb | ≥ 11.8.1, < 11.8.9 | 11.8.9 |
| mariadb/mariadb | ≥ 12.3.1, < 12.3.3 | 12.3.3 |
| mariadb/mariadb | all versions | — |