{"id":"CVE-2026-74030","summary":"Wazuh 3.9.0 before 4.14.8 Memory Exhaustion via SCA YAML Alias Expansion","details":"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.","aliases":["GHSA-x8v7-g49q-ff7j"],"modified":"2026-10-15T02:47:50.513509828Z","published":"2026-10-13T13:27:25.427Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-776"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74030.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74030.json"},{"type":"ADVISORY","url":"https://github.com/wazuh/wazuh/security/advisories/GHSA-x8v7-g49q-ff7j"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74030"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/wazuh-3.9.0-before-4.14.8-memory-exhaustion-via-sca-yaml-alias-expansion"},{"type":"FIX","url":"https://github.com/wazuh/wazuh/releases/tag/v4.14.8"},{"type":"PACKAGE","url":"https://github.com/wazuh/wazuh"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wazuh/wazuh","events":[{"introduced":"18bac2de69f5a37e5c3c4e2dfbce5a0093042ea7"},{"fixed":"f470ad7db717b18db7feeed568949643698f0f34"}],"database_specific":{"extracted_events":[{"introduced":"3.9.0"},{"fixed":"4.14.8"}],"source":["AFFECTED_FIELD","DESCRIPTION","REFERENCES"]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74030.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}