Description
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.
Severity (CVSS)
| Base score | 7 |
|---|---|
| Severity | High |
| Version | CVSS 4.0 |
| Vector | CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N |
| Provided by | CNA |
Weaknesses
- CWE-345 — Insufficient Verification of Data Authenticity
Affected products
| Vendor | Product | Versions |
|---|---|---|
| wazuh | wazuh | 0 to <5.0.0-beta3; 5.0.0-beta3 |
References
- https://github.com/wazuh/wazuh/security/advisories/GHSA-jv5p-fhwh-9w55 (vendor-advisory)
- https://github.com/wazuh/wazuh/commit/b3dae02ec9ddcfd449cb61b4c76d180e3e43f79a (patch)
- https://www.vulncheck.com/advisories/wazuh-before-beta3-cluster-attribution-spoofing-via-inventory-sync (third-party-advisory)
Generated from the official CVE List on 02 Aug 2026 07:05 UTC.