{"id":"CVE-2026-74040","revision":"f34e79066ced46b1b82def7b68bf0c07","records":[{"revision":"f34e79066ced46b1b82def7b68bf0c07","observedAt":"2026-10-26T15:35:30.984+00:00","statement":{"source":"cve-program","id":"CVE-2026-74040","aliases":[],"title":"Wazuh 3.9.0 before 4.14.8 Arbitrary File Overwrite RCE via process_files_from_worker","description":"Wazuh versions from 3.9.0 before 4.14.8 contain an arbitrary file overwrite vulnerability in MasterHandler.process_files_from_worker allowing a cluster worker to overwrite protected master files. Attackers controlling a worker can use a trailing-slash basename bypass and missing extra_valid enforcement to overwrite ossec.conf and agent.conf, achieving root remote code execution across the manager and every agent.","state":0,"publishedAt":"2026-10-13T13:27:30.557+00:00","modifiedAt":"2026-10-26T14:15:48.059+00:00","affected":[{"ecosystem":"Vendor product","name":"wazuh-manager","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Wazuh\",\n                    \"product\": \"wazuh-manager\",\n                    \"packageURL\": \"pkg:github/wazuh/wazuh\",\n                    \"repo\": \"https://github.com/wazuh/wazuh\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"3.9.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"4.14.8\"\n                        },\n                        {\n                            \"version\": \"4.14.8\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","score":9.4,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","score":9.1,"severity":"CRITICAL"}],"references":["https://github.com/wazuh/wazuh/security/advisories/GHSA-88p6-7cm8-xwj8","https://github.com/wazuh/wazuh/releases/tag/v4.14.8","https://www.vulncheck.com/advisories/wazuh-3.9.0-before-4.14.8-arbitrary-file-overwrite-rce-via-process-files-from-worker"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-74040","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-74040","identifiers":["CVE-2026-74040"]},"retained":false,"historicalAffected":[]}],"coverage":[]}