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Medium 6.3Published Aug 1, 2026

CVE-2026-67307Wazuh before 5.0.0-beta3 Cluster Attribution Spoofing via Inventory Sync

Updated under an hour ago ()

Does this affect you?

It affects wazuh. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
6.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N
Weakness (CWE)
CWE-345
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
VulnCheck
NVD analysis
Analyzed
Record last updated
Aug 3, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
wazuh wazuh
wazuh:wazuh (from the name)
before 5.0.0-beta3; 5.0.0-beta3 not affected
CNA record
wazuh wazuh
wazuh:wazuh
5.0.0
NVD

References

  • vendor-advisory, exploit, mitigation
  • patch
  • third-party-advisory, exploit, patch

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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