OS Command Injection in MariaDB - CVE-2026-44168
Published: May 19, 2026
Vulnerability identifier: #VU131787
CSH Severity: Low
CVSS v4: 7.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-44168
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary shell commands on the donor side.
The vulnerability exists due to command injection in wsrep SST donor-side parameter handling when interpolating parameters sent by the joiner into the command line. A remote privileged user can send crafted SST parameters to execute arbitrary shell commands on the donor side.
The issue occurs during state snapshot transfer and requires control of a malicious joiner node.
Affected software
MariaDB
How to mitigate CVE-2026-44168
Install security update from vendor's website.
MariaDB - addressed in versions 10.6.26, 10.11.17, 11.4.11, 11.8.7, 12.3.2