CVE-2026-49261

CVE Details

Release Date:	2026-06-11
Impact:	Important	What is this?

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`.

See more information about CVE-2026-49261 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	9.0
Vector String:	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Version:	3.1
Attack Vector:	Network
Attack Complexity:	High
Privileges Required:	None
User Interaction:	None
Scope:	Changed
Confidentiality Impact:	High
Integrity Impact:	High
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (Judy)	ELSA-2026-33464	2026-06-30
Oracle Linux version 8 (galera)	ELSA-2026-33464	2026-06-30
Oracle Linux version 8 (mariadb)	ELSA-2026-33464	2026-06-30
Oracle Linux version 9 (galera)	ELSA-2026-33482	2026-07-02
Oracle Linux version 9 (mariadb)	ELSA-2026-33482	2026-07-02