CVE-2026-39359
Wazuh: Unauthenticated Path Traversal in authd via Agent Group Name
Description
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.
INFO
Published Date :
July 17, 2026, 12:16 a.m.
Last Modified :
July 20, 2026, 1:42 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Wazuh Manager to version 4.10.4 or 4.14.5.
- Apply available security patches for Wazuh.
- Verify agent configurations after update.
- Monitor system logs for suspicious activity.
Public PoC/Exploit Available at Github
CVE-2026-39359 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-39359.
| URL | Resource |
|---|---|
| https://github.com/wazuh/wazuh/security/advisories/GHSA-6q95-fcwc-4h44 | Exploit Mitigation Vendor Advisory |
| https://github.com/wazuh/wazuh/security/advisories/GHSA-6q95-fcwc-4h44 | Exploit Mitigation Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-39359 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-39359
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Personal Bio README
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-39359 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-39359 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jul. 20, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:* versions from (including) 4.0.0 up to (excluding) 4.10.4 *cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:* versions from (including) 4.11.0 up to (excluding) 4.14.5 Added Reference Type GitHub, Inc.: https://github.com/wazuh/wazuh/security/advisories/GHSA-6q95-fcwc-4h44 Types: Exploit, Mitigation, Vendor Advisory Added Reference Type CISA-ADP: https://github.com/wazuh/wazuh/security/advisories/GHSA-6q95-fcwc-4h44 Types: Exploit, Mitigation, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 17, 2026
Action Type Old Value New Value Added Reference https://github.com/wazuh/wazuh/security/advisories/GHSA-6q95-fcwc-4h44 Added SSVC {'id': 'CVE-2026-39359', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-17T13:53:24.188275Z'} -
New CVE Received by [email protected]
Jul. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'wazuh', 'product': 'wazuh', 'versions': [{'status': 'affected', 'version': '>= 4.0.0, < 4.10.4'}, {'status': 'affected', 'version': '>= 4.11.0, < 4.14.5'}]}] Added Description 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-22 Added Reference https://github.com/wazuh/wazuh/security/advisories/GHSA-6q95-fcwc-4h44