CVE-2026-49261
Critical
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`.
SeverityCritical
CVSS10.0
Exploit probability—
Product
Mariadb
PublishedJun 11, 2026
First seenJun 11, 2026
Weakness typeCWE-78OS command injection
How to fix
Update
- mariadb mariadb10.6.27, 10.11.18, 11.4.12, 11.8.8 or later
Vendor advisories
- access.redhat.com/errata/RHSA-2026:49522
- access.redhat.com/errata/RHSA-2026:33093
- access.redhat.com/errata/RHSA-2026:33412
- access.redhat.com/errata/RHSA-2026:33464
- access.redhat.com/errata/RHSA-2026:52848
- access.redhat.com/errata/RHSA-2026:54142
- access.redhat.com/errata/RHSA-2026:33482
- access.redhat.com/errata/RHSA-2026:33481
- access.redhat.com/errata/RHSA-2026:25145
- access.redhat.com/errata/RHSA-2026:25143
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mariadb mariadb | 10.6.1 ≤ v < 10.6.27, 10.11.1 ≤ v < 10.11.18, 11.4.1 ≤ v < 11.4.12, 11.8.1 ≤ v < 11.8.8, 12.3.1 | 10.6.27, 10.11.18, 11.4.12, 11.8.8 |
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