CVE-2026-74030mediumCWE-776

CVE-2026-74030: medium-severity vulnerability in wazuh-agent

Wazuh 3.9.0 before 4.14.8 Memory Exhaustion via SCA YAML Alias Expansion

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.9epss 0.4%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
Wazuh · wazuh-agentWazuh · wazuh-manager
Related CVEs — wazuh-agent

In the same product, most dangerous first.

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