CVE-2026-48165: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in MariaDB server
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.
AI Analysis
Technical Summary
MariaDB server versions 10.6.1 through before 10.6.27, 10.11.1 through before 10.11.18, 11.4.1 through before 11.4.12, 11.8.1 through before 11.8.8, and exactly 12.3.1 contain an OS command injection vulnerability (CWE-78). A high-privileged user can leverage the wsrep_sst_receive_address or wsrep_sst_donor global system variables to execute arbitrary shell commands as the mariadbd process user on the Galera joiner node. This vulnerability has been addressed and fixed in versions 10.6.27, 10.11.18, 11.4.12, 11.8.8, and 12.3.2. The CVSS v3.1 base score is 8.0, indicating high severity with network attack vector, high privileges required, no user interaction, and complete confidentiality, integrity, and availability impact. Red Hat advisories confirm the issue and provide updated packages to remediate the vulnerability.
Potential Impact
Successful exploitation allows a high-privileged MariaDB user to execute arbitrary shell commands with the privileges of the mariadbd process on the Galera cluster joiner node. This can lead to full compromise of the database server, including confidentiality, integrity, and availability impacts. The vulnerability affects multi-node Galera cluster setups where wsrep SST variables are used.
Mitigation Recommendations
A fix is available and has been released in MariaDB versions 10.6.27, 10.11.18, 11.4.12, 11.8.8, and 12.3.2. Users should upgrade to these or later versions to remediate the vulnerability. Red Hat provides updated packages for affected Enterprise Linux distributions. No additional mitigations are specified by the vendor advisory beyond applying the official patches.
CVE-2026-48165: CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in MariaDB server
Description
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.
CVSS v3.1
Score 8.0high
Affected software
pkg:github/mariadb/serverRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
MariaDB server versions 10.6.1 through before 10.6.27, 10.11.1 through before 10.11.18, 11.4.1 through before 11.4.12, 11.8.1 through before 11.8.8, and exactly 12.3.1 contain an OS command injection vulnerability (CWE-78). A high-privileged user can leverage the wsrep_sst_receive_address or wsrep_sst_donor global system variables to execute arbitrary shell commands as the mariadbd process user on the Galera joiner node. This vulnerability has been addressed and fixed in versions 10.6.27, 10.11.18, 11.4.12, 11.8.8, and 12.3.2. The CVSS v3.1 base score is 8.0, indicating high severity with network attack vector, high privileges required, no user interaction, and complete confidentiality, integrity, and availability impact. Red Hat advisories confirm the issue and provide updated packages to remediate the vulnerability.
Potential Impact
Successful exploitation allows a high-privileged MariaDB user to execute arbitrary shell commands with the privileges of the mariadbd process on the Galera cluster joiner node. This can lead to full compromise of the database server, including confidentiality, integrity, and availability impacts. The vulnerability affects multi-node Galera cluster setups where wsrep SST variables are used.
Mitigation Recommendations
A fix is available and has been released in MariaDB versions 10.6.27, 10.11.18, 11.4.12, 11.8.8, and 12.3.2. Users should upgrade to these or later versions to remediate the vulnerability. Red Hat provides updated packages for affected Enterprise Linux distributions. No additional mitigations are specified by the vendor advisory beyond applying the official patches.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-20T23:12:43.032Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-48165","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:25145","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:25143","vendor":"Red Hat"}]
Threat ID: 6a2c4809e617e2d8349cf16b
Added to database: 06/12/2026, 17:55:21 UTC
Last enriched: 07/15/2026, 13:07:34 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 156
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