RHEL 9 : mysql (RHSA-2026:4828)

medium Nessus Plugin ID 302838

Synopsis

The remote Red Hat host is missing one or more security updates for mysql.

Description

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:4828 advisory.

MySQL is a multi-user, multi-threaded SQL database server. It consists of the MySQL server daemon (mysqld) and many client programs and libraries.

Security Fix(es):

* mysql: Optimizer unspecified vulnerability (CPU Jan 2026) (CVE-2026-21941)

* mysql: Optimizer unspecified vulnerability (CPU Jan 2026) (CVE-2026-21948)

* mysql: InnoDB unspecified vulnerability (CPU Jan 2026) (CVE-2026-21936)

* mysql: Optimizer unspecified vulnerability (CPU Jan 2026) (CVE-2026-21968)

* mysql: DDL unspecified vulnerability (CPU Jan 2026) (CVE-2026-21937)

* mysql: Thread Pooling unspecified vulnerability (CPU Jan 2026) (CVE-2026-21964)

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 these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL mysql package based on the guidance in RHSA-2026:4828.

Plugin Details

Severity: Medium

ID: 302838

File Name: redhat-RHSA-2026-4828.nasl

Version: 1.1

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 3/18/2026

Updated: 3/18/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-21968

CVSS v3

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 4.3

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

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

CVSS Score Source: CVE-2026-21948

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:mysql-devel, p-cpe:/a:redhat:enterprise_linux:mysql, p-cpe:/a:redhat:enterprise_linux:mysql-server, p-cpe:/a:redhat:enterprise_linux:mysql-errmsg, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:mysql-common, p-cpe:/a:redhat:enterprise_linux:mysql-test, p-cpe:/a:redhat:enterprise_linux:mysql-libs

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: 3/17/2026

Vulnerability Publication Date: 1/20/2026

Reference Information

CVE: CVE-2026-21936, CVE-2026-21937, CVE-2026-21941, CVE-2026-21948, CVE-2026-21964, CVE-2026-21968

RHSA: 2026:4828

Detections

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