CVE-2026-74034: Wazuh Wazuh-Manager

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Wazuh from 4.1.0 before 4.14.8 contains a missing origin check in wm_agent_upgrade that allows enrolled agents to issue upgrade_custom commands with attacker-controlled file_path. Attackers can inject an upgrade_custom message over the agent channel to read arbitrary files as root, exfiltrating /etc/shadow and client.keys.

Affected products

• Wazuh Wazuh-Manager: from 4.1.0, before 4.14.8 (fixed in 4.14.8)

Published 2026-10-13. Last modified 2026-10-15.