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

Published Jun 12, 2026
·
Updated

Last updated 12 July 2026

Other sources

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 wsrepsstreceiveaddress or wsrepsstdonor 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.

— Red Hat

Affected Software

7 affected componentsFixes available
MariaDB MariaDB Server>=10.6.1<10.6.27, >=10.11.1<10.11.18, >=11.4.1<11.4.12, >=11.8.1<11.8.8, =12.3.1
MariaDB MariaDB>=10.6.1<10.6.27
MariaDB MariaDB>=10.11.1<10.11.18
MariaDB MariaDB>=11.4.1<11.4.12
MariaDB MariaDB>=11.8.1<11.8.8
MariaDB MariaDB=12.3.1
debian/mariadb<=1:11.8.6-0+deb13u1
1:10.11.18-0+deb12u11:11.8.8-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/mariadb to a version that resolves this vulnerability.

    Fixed in 1:10.11.18-0+deb12u1Fixed in 1:11.8.8-1
  2. Upgrade

    Upgrade MariaDB Server (Galera/WSREP joiner) to a version that resolves this vulnerability.

    Fixed in 10.6.27
  3. Upgrade

    Upgrade MariaDB Server (Galera/WSREP joiner) to a version that resolves this vulnerability.

    Fixed in 10.11.18
  4. Upgrade

    Upgrade MariaDB Server (Galera/WSREP joiner) to a version that resolves this vulnerability.

    Fixed in 11.4.12
  5. Upgrade

    Upgrade MariaDB Server (Galera/WSREP joiner) to a version that resolves this vulnerability.

    Fixed in 11.8.8
  6. Upgrade

    Upgrade MariaDB Server (Galera/WSREP joiner) to a version that resolves this vulnerability.

    Fixed in 12.3.2

Event History

Jun 12, 2026
CVE Published
via MITRE·05:35 PM
Data Sourced
via MITRE·05:35 PM
DescriptionSeverityWeakness
Data Sourced
via Red Hat·06:01 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·06:16 PM
DescriptionSeverityWeaknessAffected Software
Jul 15, 2026
Data Sourced
via Ubuntu·01:29 PM
RemedyDescriptionSeverityAffected Software
Data Sourced
via Debian·01:34 PM
DescriptionAffected Software
Data Sourced
via Launchpad·01:34 PM
Description
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Frequently Asked Questions

1

What is the severity of CVE-2026-48165?

CVE-2026-48165 has a high severity rating of 8.

2

What type of vulnerability is CVE-2026-48165?

CVE-2026-48165 is categorized as an OS Command Injection vulnerability.

3

How do I fix CVE-2026-48165?

To fix CVE-2026-48165, upgrade MariaDB to versions 10.6.27 or later, 10.11.18 or later, 11.4.12 or later, 11.8.8 or later, or 12.3.1 or later.

4

Which versions of MariaDB are affected by CVE-2026-48165?

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 are affected by CVE-2026-48165.

5

Who can exploit CVE-2026-48165?

A high-privileged MariaDB user could exploit CVE-2026-48165 using unsafe `wsrep_sst_receive_address` values on the joiner side.

Company

Resources

Contact

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