Wazuh Server 4.3.0 < 4.14.6 Path Traversal (CVE-2026-49441)

critical Nessus Plugin ID 339362

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Synopsis

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

Description

The version of Wazuh Server on the remote host is at least 4.3.0 and prior to 4.14.6. It is, therefore, affected by a path traversal vulnerability:

- The non-merged branch of process_files_from_worker() trusts a peer-controlled file_path key from files_metadata.json. A cluster peer holding the shared Fernet key can upload a crafted archive and overwrite security-sensitive files such as ossec.conf, leading to code execution after a service reload.
(CVE-2026-49441)

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: Critical

ID: 339362

File Name: wazuh_server_CVE-2026-49441.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: Medium

Score: 5

Percentile: 93.75

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-2026-49441

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

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-2026-49441

CWE: 73

Detections

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