Amazon Linux 2 : mariadb (ALAS-2026-4028)

high Nessus Plugin ID 371797

Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of mariadb installed on the remote host is prior to 5.5.68-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-4028 advisory.

MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, MariaDB RPM packages created the dedicated mysql service account with the database data directory as its home directory. A database user with the FILE privilege could write startup dot-files such as .bash_profile into $HOME, and those files could execute when an administrator opened a login shell for the mysql account. Debian packages are not affected because they use /nonexistent as the account home. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2. (CVE-2026-107814)

MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, the MariaDB view FRM parser did not safely encode embedded newline characters in a username. An account with CREATE USER and CREATE VIEW WITH GRANT OPTION could create a crafted username containing additional view metadata, causing the parser to interpret part of the username as security metadata and potentially escalating database privileges. This issue is fixed in versions 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2. (CVE-2026-107823)

Tenable has extracted the preceding description block directly from the tested product 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

Run 'yum update mariadb' or or 'yum update --advisory ALAS2-2026-4028' to update your system.

Plugin Details

Severity: High

ID: 371797

File Name: al2_ALAS-2026-4028.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 10/24/2026

Updated: 10/24/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 93

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.1

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

CVSS Score Source: CVE-2026-107823

CVSS v3

Risk Factor: High

Base Score: 8.4

Temporal Score: 7.3

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

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

CVSS Score Source: CVE-2026-107814

Vulnerability Information

CPE: cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:mariadb-bench, p-cpe:/a:amazon:linux:mariadb-debuginfo, p-cpe:/a:amazon:linux:mariadb-devel, p-cpe:/a:amazon:linux:mariadb-embedded-devel, p-cpe:/a:amazon:linux:mariadb-embedded, p-cpe:/a:amazon:linux:mariadb-libs, p-cpe:/a:amazon:linux:mariadb-server, p-cpe:/a:amazon:linux:mariadb-test, p-cpe:/a:amazon:linux:mariadb

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/24/2026

Vulnerability Publication Date: 9/3/2026

Reference Information

CVE: CVE-2026-107814, CVE-2026-107823

IAVA: 2026-A-0926, 2026-A-1193

Detections

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