MariaDB 10.6.27 Release Notes

MariaDB 10.6.27 is a Stable (GA) release of MariaDB Community Server 10.6, released on 2026-05-27

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Release date: 27 May 2026

MariaDB 10.6.27 is a Stable (GA) corrective release of MariaDB Community Server 10.6. Released on 2026-05-27, this version includes fixes for high-severity security vulnerabilities reported for MariaDB Cluster (Galera), as defined in our engineering policy (see https://mariadb.com/engineering-policies/).

For an overview of MariaDB 10.6 see the MariaDB 10.6 Changes & Improvements page.

Notable Items

MariaDB Cluster (Galera)

• A parameter-injection gap existed in wsrep_sst_rsync because it failed to validate the joiner-supplied WSREP_SST_OPT_REMOTE_USER and WSREP_SST_OPT_REMOTE_PSWD values before interpolating them into the donor-written stunnel.conf and the rsync magic file MDEV-39648

• An appropriately privileged user (with SUPER privileges) could execute shell commands as the uid of the mariadbd process because the values of the system variables wsrep_sst_donor and wsrep_sst_receive_address, which can be modified at runtime, were not properly sanitized when used to construct a shell command MDEV-39676

• The wsrep_notify_cmd functionality was susceptible to a parameter-injection vulnerability, as it failed to validate the peer-supplied wsrep_node_name and wsrep_node_incoming_address values before interpolating them into the notification command line MDEV-39721

• Galera updated to 26.4.27

Security

Fixes for the following security vulnerabilities

CVE ID (with cve.org link)	CVSS base score (v3.1)
CVE-2026-49261	10.0
CVE-2026-48165	8.0
CVE-2026-48163	8.0

Changelog

For a complete list of changes made in MariaDB 10.6.27, with links to detailed information on each push, see the changelog.

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