Critical · published June 11, 2026
MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through 10.11.17, 11.4.1 through 11.4.11, 11.8.1 through 11.8.7, and 12.3.1 with `wsrep_notify_cmd` enabled would execute shell commands embedded in the name of the joiner node. This is fixed in 10.6.27, 10.11.18, 11.4.12, 11.8.8, and 12.3.2. As a workaround, anyone who cannot upgrade now should disable `wsrep_notify_cmd`.
| Product | Versions | Fixed in |
|---|---|---|
| mariadb/mariadb | ≥ 10.6.1, < 10.6.27 | 10.6.27 |
| mariadb/mariadb | ≥ 10.11.1, < 10.11.18 | 10.11.18 |
| mariadb/mariadb | ≥ 11.4.1, < 11.4.12 | 11.4.12 |
| mariadb/mariadb | ≥ 11.8.1, < 11.8.8 | 11.8.8 |
| mariadb/mariadb | all versions | — |