CVE-2026-74030
Wazuh 3.9.0 before 4.14.8 Memory Exhaustion via SCA YAML Alias Expansion
CVSS Score
4.9
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-776 |
| Vendor | wazuh |
| Product | wazuh-agent |
| Published | Oct 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Wazuh / wazuh-agent
3.9.0 < 4.14.8
Wazuh / wazuh-manager
3.9.0 < 4.14.8
References
Credits
🔍 karasu-hakira vikman90