What is CVE-2026-67307?

CVE-2026-67307 is a medium-severity vulnerability in Wazuh, classified under Insufficient Verification of Data Authenticity. CVSS score: 6.3/10. Published 2026-08-01.

How severe is CVE-2026-67307?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Vulnerability in Wazuh

CVE-2026-67307

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 a…

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N.

Affected products

Wazuh — versions 0, 5.0.0-beta3

Weakness classification (CWE)

CWE-345 — Insufficient Verification of Data Authenticity

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-67307?: CVE-2026-67307 is a medium-severity vulnerability in Wazuh, classified under Insufficient Verification of Data Authenticity. CVSS score: 6.3/10. Published 2026-08-01.
How severe is CVE-2026-67307?: Medium severity. CVSS v3 base score is 6.3 out of 10.