Description
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
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Wazuh | wazuh-manager | 4.1.0 – < 4.14.8 | 4.14.8 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
roninreilly/wazuh-unauth-chain ★ 2 · Oct 14, 2026
Wazuh PoC chaining CVE-2026-74034 file read and CVE-2026-74041 command execution; fixed in 4.14.8. Python standard library only.
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- WID-SEC-2026-3878 Wazuh: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 13, 2026
References
- GitHub Security Advisory (GHSA-r7hm-43xr-477j) vendor-advisory
- Wazuh v4.14.8 Release Notes patch release-notes
- VulnCheck Advisory: Wazuh 4.1.0 before 4.14.8 Arbitrary File Read via upgrade_custom Command third-party-advisory