CVE-2026-48165Network attack vector

Authenticated shell command execution via unsanitized wsrep variables

Published Jun 12, 2026 · Updated Jun 12, 2026

OS command injection in MariaDB Server allows remote authenticated users with SUPER privileges to execute shell commands on Galera joiner nodes. The joiner-side SST command builder inserts runtime values from wsrep_sst_receive_address or wsrep_sst_donor into a shell command without proper sanitization. Exploitation requires Galera to be enabled and a database account with SUPER privileges, and commands run with the operating-system identity of mariadbd.

CVSS severity8.0
High
EPSS probability1.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in MariaDB Server allows remote authenticated users with SUPER privileges to execute shell commands on Galera joiner nodes. The joiner-side SST command builder inserts runtime values from wsrep_sst_receive_address or wsrep_sst_donor into a shell command without proper sanitization. Exploitation requires Galera to be enabled and a database account with SUPER privileges, and commands run with the operating-system identity of mariadbd.

The record

CVE
CVE-2026-48165
Published
Jun 12, 2026
Updated
Jun 12, 2026
Vendor
MariaDB
Product
MariaDB Server
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jun 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 10.11.1, < 10.11.18
  2. Affected versionversion=>= 10.6.1, < 10.6.27
  3. Affected versionversion=>= 11.4.1, < 11.4.12
  4. Affected versionversion=>= 11.8.1, < 11.8.8
  5. Affected versionversion=>= 12.3.1, < 12.3.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

MariaDB · MariaDB Serverversion=>= 10.11.1, < 10.11.18; version=>= 10.6.1, < 10.6.27; version=>= 11.4.1, < 11.4.12; version=>= 11.8.1, < 11.8.8; version=>= 12.3.1, < 12.3.2

Published CVSS scores

8.0GitHubCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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