Wazuh prior 4.14.6/5.0.0-beta3 Cluster cluster.py cluster.unmerge_info merge_type/name path traversal

Summaryinfo

A vulnerability labeled as very critical has been found in Wazuh. This affects the function cluster.unmerge_info of the file framework/wazuh/core/cluster/cluster.py of the component Cluster. Executing a manipulation of the argument merge_type/name can lead to path traversal. The identification of this vulnerability is CVE-2026-48024. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in Wazuh and classified as very critical. This vulnerability affects the function cluster.unmerge_info of the file framework/wazuh/core/cluster/cluster.py of the component Cluster. The manipulation of the argument merge_type/name with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.0.0 until 4.14.6 and 5.0.0-beta3, cluster.unmerge_info() in framework/wazuh/core/cluster/cluster.py constructs paths from peer-controlled merge_type and name values in a merged synchronization archive. process_files_from_worker() in framework/wazuh/core/cluster/master.py does not adequately confine the resulting path to the declared cluster item directory. A cluster peer holding the shared Fernet key can use traversal in files_metadata.json or a merged-file header to write files such as /var/ossec/etc/ossec.conf. Replacing ossec.conf can configure root-executed commands and lead to code execution when Wazuh services reload. This issue is fixed in versions 4.14.6 and 5.0.0-beta3.

The advisory is available at github.com. This vulnerability was named CVE-2026-48024 since 05/20/2026. The exploitation appears to be easy. The attack can be initiated remotely. Additional levels of successful authentication are needed for exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/19/2026). This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

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

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Productinfo

Name

• Wazuh

Website

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

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