Medium severity4.9NVD Advisory· Published Oct 13, 2026

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.

Affected products

Wazuh/Wazuhllm-fuzzy
Range: <4.14.8

Patches

Vulnerability mechanics

References

github.com/wazuh/wazuh/releases/tag/v4.14.8nvd
github.com/wazuh/wazuh/security/advisories/GHSA-x8v7-g49q-ff7jnvd
www.vulncheck.com/advisories/wazuh-3.9.0-before-4.14.8-memory-exhaustion-via-sca-yaml-alias-expansionnvd

News mentions

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cvss	0.319
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000