CVE-2026-74040Wazuh 3.9.0 before 4.14.8 Arbitrary File Overwrite RCE via process_files_from_worker

Descripción

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.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• GitHub Security Advisory (GHSA-88p6-7cm8-xwj8) vendor-advisory
• Wazuh v4.14.8 Release Notes patchrelease-notes
• VulnCheck Advisory: Wazuh 3.9.0 before 4.14.8 Arbitrary File Overwrite RCE via process_files_from_worker third-party-advisory