Is CVE-2026-74030 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-74030?

CVE-2026-74030 has a CVSS v3 severity of MEDIUM (4.9).

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CVE-2026-74030

Description

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.