CVE-2026-48163: 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, during the SST the donor node is interpolating parameters that the joiner sent into the command line. Not all parameters were properly validated which could allow a malicious joiner to execute arbitrary shell commands on the donor side via the rsync SST method. 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 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 version 12.3.1 are vulnerable to an OS command injection during the State Snapshot Transfer (SST) process when using the rsync method. The donor node interpolates parameters sent by the joiner into the command line without proper validation, allowing a malicious joiner to execute arbitrary shell commands on the donor side. This issue is addressed in versions 10.6.27, 10.11.18, 11.4.12, 11.8.8, and 12.3.2.
Potential Impact
Successful exploitation allows a malicious joiner node to execute arbitrary shell commands on the donor node during SST, potentially leading to full compromise of the donor server. The vulnerability impacts confidentiality, integrity, and availability as indicated by the CVSS vector (C:H/I:H/A:H).
Mitigation Recommendations
Upgrade MariaDB server to patched versions 10.6.27, 10.11.18, 11.4.12, 11.8.8, or 12.3.2 or later. Patch status is confirmed by the vendor advisory. No alternative mitigations are specified.
CVE-2026-48163: 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, during the SST the donor node is interpolating parameters that the joiner sent into the command line. Not all parameters were properly validated which could allow a malicious joiner to execute arbitrary shell commands on the donor side via the rsync SST method. 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 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 version 12.3.1 are vulnerable to an OS command injection during the State Snapshot Transfer (SST) process when using the rsync method. The donor node interpolates parameters sent by the joiner into the command line without proper validation, allowing a malicious joiner to execute arbitrary shell commands on the donor side. This issue is addressed in versions 10.6.27, 10.11.18, 11.4.12, 11.8.8, and 12.3.2.
Potential Impact
Successful exploitation allows a malicious joiner node to execute arbitrary shell commands on the donor node during SST, potentially leading to full compromise of the donor server. The vulnerability impacts confidentiality, integrity, and availability as indicated by the CVSS vector (C:H/I:H/A:H).
Mitigation Recommendations
Upgrade MariaDB server to patched versions 10.6.27, 10.11.18, 11.4.12, 11.8.8, or 12.3.2 or later. Patch status is confirmed by the vendor advisory. No alternative mitigations are specified.
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
Threat ID: 6a2c4809e617e2d8349cf167
Added to database: 6/12/2026, 5:55:21 PM
Last enriched: 6/12/2026, 6:09:45 PM
Last updated: 6/12/2026, 7:21:09 PM
Views: 4
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