MariaDB: wsrep SST unsafe parameter handling on the donor side (rsync)

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Summary

CVECVE-2026-48163
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-12 18:16:35 UTC
Updated2026-07-02 12:17:28 UTC
DescriptionMariaDB 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.

Risk And Classification

Primary CVSS: v3.1 7.2 HIGH from [email protected]

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.006980000 probability, percentile 0.481810000 (date 2026-06-22)

Problem Types: CWE-78 | CWE-78 CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.2HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
3.1ADPCVSS9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
3.1[email protected]Secondary8HIGHCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
3.10b0ca135-0b70-47e7-9f44-1890c2a1c46cSecondary9.1CRITICALCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
3.1CNADECLARED8HIGHCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Mariadb Mariadb All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA MariaDB Server affected >= 10.6.1, < 10.6.27 Not specified
CNA MariaDB Server affected >= 10.11.1, < 10.11.18 Not specified
CNA MariaDB Server affected >= 11.4.1, < 11.4.12 Not specified
CNA MariaDB Server affected >= 11.8.1, < 11.8.8 Not specified
CNA MariaDB Server affected >= 12.3.1, < 12.3.2 Not specified
ADP Red Hat Red Hat Enterprise Linux AppStream V. 10 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux AppStream V. 8 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux AppStream V. 9 Not specified Not specified
ADP Red Hat Red Hat Hardened Images Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 9 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 7 Not specified Not specified

References

ReferenceSourceLinkTags
access.redhat.com/errata/RHSA-2026:33482 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:25145 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:33412 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
bugzilla.redhat.com/show_bug.cgi 0b0ca135-0b70-47e7-9f44-1890c2a1c46c bugzilla.redhat.com
security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48163.json 0b0ca135-0b70-47e7-9f44-1890c2a1c46c security.access.redhat.com
jira.mariadb.org/browse/MDEV-39648 [email protected] jira.mariadb.org Issue Tracking, Third Party Advisory
access.redhat.com/errata/RHSA-2026:33481 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/security/cve/CVE-2026-48163 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
github.com/MariaDB/server/security/advisories/GHSA-rpgv-q6gv-684r [email protected] github.com Vendor Advisory
access.redhat.com/errata/RHSA-2026:33464 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:33093 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
access.redhat.com/errata/RHSA-2026:25143 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
ADP2026-06-12T18:01:12.767ZReported to Red Hat.
ADP2026-06-12T17:34:57.923ZMade public.

Solutions

ADP: RHSA-2026:33412: Red Hat Enterprise Linux AppStream (v. 10)

ADP: RHSA-2026:33093: Red Hat Enterprise Linux AppStream (v. 10)

ADP: RHSA-2026:33464: Red Hat Enterprise Linux AppStream (v. 8)

ADP: RHSA-2026:33482: Red Hat Enterprise Linux AppStream (v. 9)

ADP: RHSA-2026:33481: Red Hat Enterprise Linux AppStream (v. 9)

ADP: RHSA-2026:25145: Red Hat Hardened Images

ADP: RHSA-2026:25143: Red Hat Hardened Images

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