CVE-2026-48165 — MariaDB: unsafe usage of `wsrep_sst_receive_address` values on the joiner side

Description (CNA)

MariaDB server is a community developed fork of MySQL server. From versions 10.6.1 to before 10.6.27, 10.11.1 to before 10.11.18, 11.4.1 to before 11.4.12, 11.8.1 to before 11.8.8, and 12.3.1, a high-privileged MariaDB user could've used wsrep_sst_receive_address or wsrep_sst_donor global system variables to execute shell commands as the uid of the mariadbd process on the galera joiner node. This issue has been patched in versions 10.6.27, 10.11.18, 11.4.12, 11.8.8, and 12.3.2.

Affected (CNA)

Vendor / product	Versions
MariaDB / server	affected >= 10.6.1, < 10.6.27; affected >= 10.11.1, < 10.11.18; affected >= 11.4.1, < 11.4.12; affected >= 11.8.1, < 11.8.8; affected >= 12.3.1, < 12.3.2

CWE

CWE-78

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

redhat-SADP

A flaw was found in MariaDB server. A high-privileged MariaDB user could exploit this vulnerability by manipulating specific global system variables, namely wsrep_sst_receive_address or wsrep_sst_donor. This manipulation could allow the user to execute arbitrary shell commands as the user ID of the mariadbd process on a galera joiner node. The primary impact of this flaw is arbitrary code execution.