CVE-2026-67307
Wazuh before 5.0.0-beta3 Cluster Attribution Spoofing via Inventory Sync
CVSS Score
6.3
EPSS Score
0.0%
EPSS Percentile
0th
Wazuh 5.0.0-beta1 (fixed in 5.0.0-beta3) does not validate or override the cluster_name and cluster_node fields in inventory-sync Start FlatBuffer messages, while 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, potentially tampering with inventory records or, in shared-indexer multi-cluster deployments, poisoning another cluster's records when numeric agent IDs collide.
| CWE | CWE-345 |
| Vendor | wazuh |
| Product | wazuh |
| Published | Aug 1, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
High
Availability
None
Affected Versions
wazuh / wazuh
0 < 5.0.0-beta3
References
Credits
🔍 nasaa0x