Wazuh Server 4.4.0 < 4.14.6 Log Injection (CVE-2026-44256)

medium Nessus Plugin ID 339363

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Synopsis

The remote host contains a threat prevention, detection, and response platform that is affected by a log injection vulnerability.

Description

The version of Wazuh Server on the remote host is at least 4.4.0 and prior to 4.14.6. It is, therefore, affected by a log injection vulnerability:

- The Basic authentication username is decoded before credential validation and passed to the access logger without neutralizing control characters. An unauthenticated attacker can include carriage returns or line feeds in the username to forge log entries or obscure activity in the plain-text audit log. (CVE-2026-44256)

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

Solution

Upgrade to Wazuh Server version 4.14.6 or later.

Plugin Details

Severity: Medium

ID: 339363

File Name: wazuh_server_CVE-2026-44256.nasl

Version: 1.2

Type: Local

Agent: unix

Family: Misc.

Published: 8/25/2026

Updated: 8/26/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-44256

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

CPE: cpe:/a:wazuh:wazuh

Required KB Items: installed_sw/Wazuh-Manager

Exploit Ease: No known exploits are available

Patch Publication Date: 8/7/2026

Vulnerability Publication Date: 8/7/2026

Reference Information

CVE: CVE-2026-44256

CWE: 117

Detections

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