ZDI-26-528: Wazuh Cluster DAPI Protocol Deserialization of Untrusted Data Remote Code Execution Vulnerability

Published Aug 11, 2026
·
Updated

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Wazuh. An attacker must first obtain the ability to execute low-privileged code on a worker node in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 9.9. The following CVEs are assigned: CVE-2026-28220.

Affected Software

1 affected component
Wazuh Wazuh

Event History

Aug 11, 2026
Advisory Published
via ZDI·05:00 AM
Data Sourced
via ZDI·05:00 AM
Description
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Frequently Asked Questions

1

What is the severity of ZDI-26-528?

The severity of ZDI-26-528 is rated as 9.9 based on the CVSS scoring system.

2

How do I fix ZDI-26-528?

To mitigate ZDI-26-528, ensure that all Wazuh installations are updated to the latest version that addresses this vulnerability.

3

What type of exploit is associated with ZDI-26-528?

ZDI-26-528 involves a remote code execution vulnerability due to deserialization of untrusted data.

4

Who can exploit ZDI-26-528?

ZDI-26-528 can be exploited by network-adjacent attackers with low-privileged code execution capabilities on a worker node.

5

What are the risks of ZDI-26-528?

The risks of ZDI-26-528 include the potential for attackers to execute arbitrary code on affected installations of Wazuh.

Contact

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