CVE-2026-67307

Name of the Vulnerable Software and Affected Versions Wazuh versions 5.0.0-beta1 through 5.0.0-beta2

Description The software fails to validate or override the cluster name and cluster node fields in inventory-sync Start FlatBuffer messages, validating only the agentid against the authenticated agent identity. This allows a low-privileged enrolled agent to spoof cluster attribution in indexed inventory and vulnerability documents by forging wazuh.cluster.name values and influencing the document id prefix. In shared-indexer multi-cluster deployments, this could lead to the poisoning of another cluster's records if numeric agent IDs collide, or the tampering of inventory records.

Recommendations Update to version 5.0.0-beta3.