Bug 2487957 (CVE-2026-49261)

Summary:	CVE-2026-49261 mariadb: MariaDB Server: Arbitrary code execution via wsrep_notify_cmd
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security <prodsec-ir-bot>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	rhel-process-autobot, watson-tool-maintainers
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in MariaDB server. When the `wsrep_notify_cmd` feature is enabled, a remote attacker could exploit this vulnerability by embedding shell commands in the name of a joiner node. This could lead to arbitrary code execution on the server, allowing the attacker to take full control of the affected system.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-06-11 18:01:29 UTC

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`.

Comment 3 errata-xmlrpc 2026-06-29 22:37:56 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:33093 https://access.redhat.com/errata/RHSA-2026:33093

Comment 4 errata-xmlrpc 2026-06-30 06:47:56 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:33412 https://access.redhat.com/errata/RHSA-2026:33412

Comment 5 errata-xmlrpc 2026-06-30 11:03:20 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:33464 https://access.redhat.com/errata/RHSA-2026:33464

Comment 6 errata-xmlrpc 2026-06-30 12:46:47 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:33481 https://access.redhat.com/errata/RHSA-2026:33481

Comment 7 errata-xmlrpc 2026-06-30 14:17:02 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:33482 https://access.redhat.com/errata/RHSA-2026:33482

Comment 8 errata-xmlrpc 2026-08-03 03:41:57 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10.0 Extended Update Support

Via RHSA-2026:49522 https://access.redhat.com/errata/RHSA-2026:49522