MariaDB server has unsafe parameter handling in `wsrep_notify_cmd`_CVE-2026-49261

10 / 10

CRITICAL

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

Description

MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through 10.11.17, 11.4.1 through 11.4.11, 11.8.1 through 11.8.7, and 12.3.1 with `wsrep_notify_cmd` enabled would execute shell commands embedded in the name of the joiner node. This is fixed in 10.6.27, 10.11.18, 11.4.12, 11.8.8, and 12.3.2. As a workaround, anyone who cannot upgrade now should disable `wsrep_notify_cmd`.

AI Analysis

The MariaDB server has a vulnerability in the `wsrep_notify_cmd` that allows the execution of shell commands embedded in the name of the joiner node.

Basic Information

ID CVE-2026-49261

Source GitHub_M

Published Jun 11, 2026 at 17:13

Modified Jun 11, 2026 at 18:20

Affected Product

Vendor MariaDB

Product server

Version >= 10.6.1, < 10.6.27

Affected Versions MariaDB server >= 10.6.1, < 10.6.27
MariaDB server >= 10.11.1, < 10.11.18
MariaDB server >= 11.4.1, < 11.4.12
MariaDB server >= 11.8.1, < 11.8.8
MariaDB server = 12.3.1

CWE Classification

CWE-78

AI Assessment

AI Score 10 / 10

AI Severity Critical

Vendor MariaDB

Product MariaDB Server

Version 10.6.1-10.6.26, 10.11.1-10.11.17, 11.4.1-11.4.11, 11.8.1-11.8.7, 12.3.1

References

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    "published": "2026-06-11T17:13:20.776Z",
    "modified": "2026-06-11T18:20:18.394Z",
    "type": "cve",
    "title": "MariaDB server has unsafe parameter handling in `wsrep_notify_cmd`",
    "source": "GitHub_M",
    "references": "https://github.com/MariaDB/server/security/advisories/GHSA-3p3m-4x7c-p4pw\nhttps://jira.mariadb.org/browse/MDEV-39721",
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