RHEL 8 : mariadb:10.11 (RHSA-2026:33464)

critical Nessus Plugin ID 323905

Synopsis

The remote Red Hat host is missing a security update.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:33464 advisory.

MariaDB is a multi-user, multi-threaded SQL database server that is binary compatible with MySQL.

Security Fix(es):

* mariadb: MariaDB Server: Arbitrary code execution via wsrep_notify_cmd (CVE-2026-49261)

Bug Fix(es) and Enhancement(s):

* [RHEL8][tracker] Rebase Galera to 26.4.27 MariaDB:10.11 (JIRA:RHEL-145347)

* Rebase MariaDB 10.11 to 10.11.18 in RHEL8 (JIRA:RHEL-183088)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

Plugin Details

Severity: Critical

ID: 323905

File Name: redhat-RHSA-2026-33464.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Red Hat Local Security Checks

Published: 6/30/2026

Updated: 6/30/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-49261

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:mariadb, p-cpe:/a:redhat:enterprise_linux:mariadb-devel, p-cpe:/a:redhat:enterprise_linux:mariadb-embedded, p-cpe:/a:redhat:enterprise_linux:mariadb-embedded-devel, p-cpe:/a:redhat:enterprise_linux:mariadb-server, p-cpe:/a:redhat:enterprise_linux:mariadb-test, p-cpe:/a:redhat:enterprise_linux:judy, p-cpe:/a:redhat:enterprise_linux:galera, p-cpe:/a:redhat:enterprise_linux:mariadb-backup, p-cpe:/a:redhat:enterprise_linux:mariadb-common, p-cpe:/a:redhat:enterprise_linux:mariadb-errmsg, p-cpe:/a:redhat:enterprise_linux:mariadb-gssapi-server, p-cpe:/a:redhat:enterprise_linux:mariadb-oqgraph-engine, p-cpe:/a:redhat:enterprise_linux:mariadb-server-galera, p-cpe:/a:redhat:enterprise_linux:mariadb-server-utils, p-cpe:/a:redhat:enterprise_linux:mariadb-pam, cpe:/o:redhat:rhel_eus:8.10

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 6/30/2026

Vulnerability Publication Date: 5/29/2026

Reference Information

CVE: CVE-2026-49261

CWE: 78

RHSA: 2026:33464

Detections

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