Wazuh Server 4.0.0 < 4.14.6 Multiple Vulnerabilities

high Nessus Plugin ID 339367

Synopsis

The remote host contains a threat prevention, detection, and response platform that is affected by multiple vulnerabilities.

Description

The version of Wazuh Server on the remote host is at least 4.0.0 and prior to 4.14.6. It is, therefore, affected by multiple vulnerabilities, including:

- cluster.unmerge_info() constructs paths from peer-controlled merge_type and name values in a merged synchronization archive. A cluster peer holding the shared Fernet key can use traversal to write arbitrary files such as ossec.conf, leading to code execution when Wazuh services reload. (CVE-2026-48024)

- DistributedAPI.send_tmp_file() joins an attacker-controlled tmp_file value to WAZUH_PATH without canonicalization. A cluster peer can use traversal to read any file accessible to the master, including the API private key, allowing forged administrator tokens. (CVE-2026-48162)

- AffectedItemsWazuhResult.merge() trusts the sort_casting field in a cluster worker's JSON response. A compromised worker can set sort_casting to exec and place Python source in affected_items, causing the master to execute the payload as root. (CVE-2026-44901)

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

Solution

Upgrade to Wazuh Server version 4.14.6 or later.

See Also

http://www.nessus.org/u?14be9208

http://www.nessus.org/u?5a66b89f

http://www.nessus.org/u?8acd18f0

http://www.nessus.org/u?b4d80cb0

http://www.nessus.org/u?b79dd111

Plugin Details

Severity: High

ID: 339367

File Name: wazuh_server_4_14_6.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-2026-48162

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

CVSS v4

Risk Factor: High

Base Score: 7.5

Threat Score: 4.8

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:L/SA:N

CVSS Score Source: CVE-2026-46343

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-2026-44255, CVE-2026-44901, CVE-2026-46343, CVE-2026-48024, CVE-2026-48162

CWE: 208, 22, 502, 73