Wazuh up to 4.10.3/4.14.4 authd wopendir group path traversal

Summaryinfo

A vulnerability marked as problematic has been reported in Wazuh up to 4.10.3/4.14.4. This issue affects the function wopendir of the component authd. The manipulation of the argument group leads to path traversal. This vulnerability is documented as CVE-2026-39359. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Wazuh up to 4.10.3/4.14.4. It has been rated as problematic. This issue affects the function wopendir of the component authd. The manipulation of the argument group 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. The summary by CVE is:

Wazuh is a free and open source platform used for threat prevention, detection, and response. In versions 4.0.0 through 4.10.3 and 4.11.0 through 4.14.4, a logic flaw affects the Wazuh Manager's enrollment daemon (authd) and synchronization daemon (remoted). The authd process allows agents to select a group during enrollment but does not filter path traversal sequences such as "..." While the manager checks for the group directory using wopendir(), the ".." sequence references the parent directory (/var/ossec/etc), allowing it to pass validation. After the malicious group is accepted and stored in the manager's global database, the remoted process uses this unchecked value to build paths for agent configuration synchronization. As a result, sensitive files from /var/ossec/etc, such as client.keys, ossec.conf, and internal certificates, are included in the agent's shared configuration stream and exposed to the attacker. This issue has been fixed in versions 4.10.4 and 4.14.5.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-39359 since 04/06/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 4.10.4 or 4.14.5 eliminates this vulnerability.

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Productinfo

Name

• Wazuh

Version

• 4.10.0
• 4.10.1
• 4.10.2
• 4.10.3
• 4.14.0
• 4.14.1
• 4.14.2
• 4.14.3
• 4.14.4

Website

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

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