Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-67307

CVE-2026-67307HIGH

Wazuh before 5.0.0-beta3 Cluster Attribution Spoofing via Inventory Sync

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   H   P   L   N   N   H   N    7.0   .0023   12.1     —

AFFECTED
  Product  Versions     Fixed
  wazuh    unspecified  5.0.0-beta3

TIMELINE
  Jul 29  Reserved by VulnCheck
  Aug 1   Published (CNA: VulnCheck)
  Sep 1   EXPLOIT PUBLISHED — CVE-2026-67307 (wazuh). Public exploit reference added.

CWE-345 · CNA: VulnCheck · CVSS v4.0 · 3 references · NVD status: Analyzed

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
July 29, 2026	Reserved	Reserved by VulnCheck
August 1, 2026	Published	Published (CNA: VulnCheck)
September 1, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-67307 (wazuh). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
wazuh	wazuh	—	—	5.0.0-beta3

Weaknesses

CWE-345

References (3)

https://github.com/wazuh/wazuh/commit/b3dae02ec9ddcfd449cb61b4c76d180e3e43f79a [Patch]
https://github.com/wazuh/wazuh/security/advisories/GHSA-jv5p-fhwh-9w55 [Exploit, Mitigation, Vendor Advisory]
https://www.vulncheck.com/advisories/wazuh-before-beta3-cluster-attribution-spoofing-via-inventory-sync [Exploit, Patch, Third Party Advisory]

Authoritative record: CVE-2026-67307 at cve.org

Vendors: wazuh

Weaknesses: CWE-345

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-67307 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.