Wazuh up to 4.14.5 Enrollment OS_IsValidName/delete_diff path traversal

Summaryinfo

A vulnerability marked as critical has been reported in Wazuh. The impacted element is the function OS_IsValidName/delete_diff of the component Enrollment. The manipulation leads to path traversal. This vulnerability is documented as CVE-2026-74038. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Wazuh. This issue affects the function OS_IsValidName/delete_diff of the component Enrollment. The manipulation 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 integrity, and availability. The summary by CVE is:

Wazuh 4.0.0 before 4.14.6 contains a path traversal vulnerability that allows unauthenticated remote attackers to cause denial of service by enrolling an agent with a dot-sequence name such as ".." through the enrollment port. Attackers exploit insufficient validation in OS_IsValidName() and unsafe path concatenation in delete_diff() to resolve the traversal to the parent queue directory, causing its subdirectories to be removed and stopping all Wazuh services requiring manual recovery.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-74038 since 08/14/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. 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 4.14.6 eliminates this vulnerability.

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Productinfo

Name

• Wazuh

Version

• 3.5.0
• 4.0.0
• 4.0.1
• 4.0.2
• 4.0.3
• 4.0.4
• 4.2.0
• 4.2.5
• 4.2.7
• 4.3.7
• 4.3.10
• 4.4.0
• 4.4.1
• 4.4.2
• 4.5.3
• 4.7
• 4.7.1
• 4.7.2
• 4.8.0
• 4.9.0
• 4.9.1
• 4.10.2
• 4.10.4
• 4.11.0
• 4.12.0
• 4.13
• 4.13.0
• 4.14.0
• 4.14.3
• 4.14.4
• 4.14.5

Website

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

CPE 2.3info

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