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Description

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`.

PUBLISHED Reserved 2026-05-28 | Published 2026-06-11 | Updated 2026-06-12 | Assigner GitHub_M




CRITICAL: 10.0CVSS:3.1/AV:N/AC:L/PR:N/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, < 10.6.27
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
affected

References

github.com/...server/security/advisories/GHSA-3p3m-4x7c-p4pw

jira.mariadb.org/browse/MDEV-39721

cve.org (CVE-2026-49261)

nvd.nist.gov (CVE-2026-49261)

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