MariaDB CVE-2026-48165: wsrep_sst exec 10.6.x,10.11.x,11.4.x,11.8.x,12.3.1
CVE-2026-48165 Published on June 12, 2026
MariaDB: unsafe usage of `wsrep_sst_receive_address` values on the joiner side
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 wsrep_sst_receive_address or wsrep_sst_donor 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.
Vulnerability Analysis
CVE-2026-48165 can be exploited with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a Shell injection Vulnerability?
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
CVE-2026-48165 has been classified to as a Shell injection vulnerability or weakness.
Products Associated with CVE-2026-48165
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Affected Versions
MariaDB server:- Version >= 10.6.1, < 10.6.27 is affected.
- Version >= 10.11.1, < 10.11.18 is affected.
- Version >= 11.4.1, < 11.4.12 is affected.
- Version >= 11.8.1, < 11.8.8 is affected.
- Version >= 12.3.1, < 12.3.2 is affected.
- Version 3:10.11.18-1.el10_2 and below * is unaffected.
- Version 3:11.8.8-1.el10_2 and below * is unaffected.
- Version 8100020260616102001.489197e6 and below * is unaffected.
- Version 9080020260612104015.rhel9 and below * is unaffected.
- Version 9080020260612103452.rhel9 and below * is unaffected.
- Version 11.8.8-1.hum1 and below * is unaffected.
- Version 10.11.18-1.hum1 and below * is unaffected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.