CVE-2026-48165

MariaDB: unsafe usage of `wsrep_sst_receive_address` values on the joiner side

HIGH
7.2
CVSS Score
Published: June 12, 2026 at 05:35 PM UTC
Updated: October 26, 2026 at 11:10 AM UTC
1 product affected across 1 vendorMariaDB

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Severity
HIGH7.2
Exploit prediction
EPSS 2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

10.11.1 ≤ v < 10.11.1810.6.1 ≤ v < 10.6.2711.4.1 ≤ v < 11.4.1211.8.1 ≤ v < 11.8.812.3.1
Affected range stops below 10.11.18, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.6.27, so it looks safe — our inference, not a vendor statement
Affected range stops below 11.4.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 11.8.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.3.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (13)

x_refsource_CONFIRMVendor Advisory
Source: cverecord
https://github.com/MariaDB/server/security/advisories/GHSA-7v3p-h23x-8hwv
x_refsource_MISCIssue TrackingThird Party Advisory
Source: cverecord
https://jira.mariadb.org/browse/MDEV-39676
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://access.redhat.com/errata/RHSA-2026:25143
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://access.redhat.com/errata/RHSA-2026:25145
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://access.redhat.com/security/cve/CVE-2026-48165
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://bugzilla.redhat.com/show_bug.cgi?id=2488458
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
https://access.redhat.com/errata/RHSA-2026:33093

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-78

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