{"schema":"threatline.record/2","record":{"id":"CVE-2026-74040","aliases":["GHSA-88p6-7cm8-xwj8"],"summary":"Wazuh 3.9.0 before 4.14.8 Arbitrary File Overwrite RCE via process_files_from_worker","details":"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.","categories":["Unclassified"],"product":"wazuh-manager","vendor":"Wazuh","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-74040","source_modified_at":"2026-10-16T21:53:48.974Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"wazuh-manager","vendor":"Wazuh","versions":[{"version":"3.9.0","status":"affected","versionType":"semver","lessThan":"4.14.8"},{"version":"4.14.8","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-74040","source_modified_at":"2026-10-16T21:53:48.974Z","fetched_at":"2026-10-23T18:48:36.087640Z","package":{"name":"wazuh-manager","ecosystem":null},"version":"4.14.8","basis":"first unaffected version stated in the CVE record"}],"cvss":9.4,"severity":"Critical","kev":{"listed":false},"epss":{"probability":0.00552,"percentile":0.45363,"score_date":"2026-10-23"},"published_at":"2026-10-13T13:27:30.557Z","modified_at":"2026-10-16T21:53:48.974Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-74040","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-16T21:53:48.974Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-74040","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/wazuh/wazuh/security/advisories/GHSA-88p6-7cm8-xwj8","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/wazuh/wazuh/releases/tag/v4.14.8","tags":["patch","release-notes"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/wazuh-3.9.0-before-4.14.8-arbitrary-file-overwrite-rce-via-process-files-from-worker","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"total","assessed_at":"2026-10-16T21:53:07.447925Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-16T21:53:48.974Z","content_hash":"36a7af0062cb219328a4b8d8ed6a8a8715f98b6b5ec40e0c1776cdd98dbe98d9"}}