CVE-2026-48163
MariaDB: wsrep SST unsafe parameter handling on the donor side (rsync)
- State
- Published
- Severity
- 8.0 High
- Published
- Jun 12, 2026
- Updated
- Aug 3, 2026
- Reserved
- May 20, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.0 High | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H | GitHub_M |
| 3.1 | 9.1 Critical | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H | redhat-SADP |
Weaknesses
- CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Products
| Product | Versions |
|---|---|
serverMariaDB |
|
References
- https://github.com/MariaDB/server/security/advisories/GHSA-rpgv-q6gv-684r
- https://jira.mariadb.org/browse/MDEV-39648
- https://access.redhat.com/security/cve/CVE-2026-48163vdb-entry
- RHBZ#2488454issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48163.json
- https://access.redhat.com/errata/RHSA-2026:49522vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:33093vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:33412vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:33464vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:33482vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:33481vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:25145vendor-advisory
- https://access.redhat.com/errata/RHSA-2026:25143vendor-advisory
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.