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Vulnerability record · CVE-2026-49261 · published 11 June 2026

CVE-2026-49261: Mariadb os command injection vulnerability

Mariadb · Mariadb

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`.

9.8 CVSS 3.1 Critical EPSS 1.7% · top 23.8% CWE-78 · OS command injection
9.8CVSS 3.1 base score
1.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
15References
12 Aug 2026Last modified by NVD

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`.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/MariaDB/server/security/advisories/GHSA-3p3m-4x7c-p4pw Vendor Advisory
https://jira.mariadb.org/browse/MDEV-39721 Issue Tracking
https://access.redhat.com/errata/RHSA-2026:25143
https://access.redhat.com/errata/RHSA-2026:25145
https://access.redhat.com/errata/RHSA-2026:33093
https://access.redhat.com/errata/RHSA-2026:33412
https://access.redhat.com/errata/RHSA-2026:33464
https://access.redhat.com/errata/RHSA-2026:33481
https://access.redhat.com/errata/RHSA-2026:33482
https://access.redhat.com/errata/RHSA-2026:49522
https://access.redhat.com/errata/RHSA-2026:52848
https://access.redhat.com/errata/RHSA-2026:54142
https://access.redhat.com/security/cve/CVE-2026-49261
https://bugzilla.redhat.com/show_bug.cgi?id=2487957
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-49261.json

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-49261), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.