Wazuh up to 4.14.5/5.0.0-beta2 Cluster Master master.py process_files_from_worker file_path path traversal

Summaryinfo

A vulnerability, which was classified as very critical, has been found in Wazuh up to 4.14.5/5.0.0-beta2. Impacted is the function process_files_from_worker of the file framework/wazuh/core/cluster/master.py of the component Cluster Master. The manipulation of the argument file_path leads to path traversal. This vulnerability is listed as CVE-2026-49441. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Wazuh up to 4.14.5/5.0.0-beta2 and classified as very critical. This issue affects the function process_files_from_worker of the file framework/wazuh/core/cluster/master.py of the component Cluster Master. The manipulation of the argument file_path with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.3.0 until 4.14.6 and 5.0.0-beta3, the non-merged branch of process_files_from_worker() in framework/wazuh/core/cluster/master.py trusts a peer-controlled file_path key from files_metadata.json. The destination is joined to WAZUH_PATH without proving that it remains inside the directory selected by cluster_item_key. A cluster peer holding the shared Fernet key can upload a crafted extra-valid archive and overwrite security-sensitive files such as /var/ossec/etc/ossec.conf. Replacing ossec.conf can configure root-executed commands and lead to code execution after a service reload. This issue is fixed in versions 4.14.6 and 5.0.0-beta3.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-49441 since 05/30/2026. The exploitation is known to be easy. The attack may be initiated remotely. Additional levels of successful authentication are necessary for exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/19/2026). MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 4.14.6 or 5.0.0-beta3 eliminates this vulnerability.

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Productinfo

Name

• Wazuh

Version

• 4.14.0
• 4.14.1
• 4.14.2
• 4.14.3
• 4.14.4
• 4.14.5
• 5.0.0-beta1
• 5.0.0-beta2

Website

• Product: https://github.com/wazuh/wazuh/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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