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Description

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.

PUBLISHED Reserved 2026-05-05 | Published 2026-06-12 | Updated 2026-06-16 | Assigner GitHub_M




HIGH: 8.0CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Problem types

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Product status

>= 10.6.1, < 10.6.26
affected

>= 10.11.1, < 10.11.17
affected

>= 11.4.1, < 11.4.11
affected

>= 11.8.1, < 11.8.7
affected

>= 12.3.1, < 12.3.2
affected

References

github.com/...server/security/advisories/GHSA-vwf7-w26c-9w5h

jira.mariadb.org/browse/MDEV-39413

cve.org (CVE-2026-44168)

nvd.nist.gov (CVE-2026-44168)

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