CVE-2026-74030: Wazuh Wazuh-Agent

Medium severity, CVSS 4.9. EPSS: 0.4% chance of exploitation in the next 30 days.

Wazuh from 3.9.0 before 4.14.8 contains an uncontrolled YAML alias expansion vulnerability in yaml2json_node that allows a manager-controlled policy to exhaust agent memory. Attackers controlling the manager can push a small SCA policy with nested aliases via merged.mg to OOM-kill wazuh-modulesd on every agent in a group.

Affected products

• Wazuh Wazuh-Agent: from 3.9.0, before 4.14.8 (fixed in 4.14.8)
• Wazuh Wazuh-Manager: from 3.9.0, before 4.14.8 (fixed in 4.14.8)

Published 2026-10-13. Last modified 2026-10-13.