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CVE-2026-44168

MariaDB: wsrep SST unsafe parameter handling on the donor side

Published: 6/12/2026 Last updated: 6/16/2026 Reserved: 5/5/2026

MariaDB server is a community developed fork of MySQL server. From versions 10.6.1 to before 10.6.26, 10.11.1 to before 10.11.17, 11.4.1 to before 11.4.11, 11.8.1 to before 11.8.7, and 12.3.1, during the SST the donor node is interpolating parameters that the joiner sent into the command line. Not all parameters were properly validated which could allow a malicious joiner to execute arbitrary shell commands on the donor side via the mariabackup SST method. This issue has been patched in versions 10.6.26, 10.11.17, 11.4.11, 11.8.7, and 12.3.2.

CNA assigner: GitHub_M (a0819718-46f1-4df5-94e2-005712e83aaa) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 8 High CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Opam packages affected (2)

conf-mariadb conf-mysql

Products affected (2)

Product Vendor Version
server MariaDB 1.0
server MariaDB 2.4

References (4)