Auth bypass in Wazuh Wazuh-Manager
CVE-2026-74034
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.
Vulnerability class: Broken Access Control
Published .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/wazuh/wazuh/security/advisories/GHSA-r7hm-43xr-477j (vendor-advisory)
- github.com/wazuh/wazuh/releases/tag/v4.14.8 (release-notes, patch)
- www.vulncheck.com/advisories/wazuh-4.1.0-before-4.14.8-arbitrary-file-read-via-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-74034?
- CVE-2026-74034 is a high-severity vulnerability in Wazuh Wazuh-Manager, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-10-13.
- How severe is CVE-2026-74034?
- High severity. CVSS v3 base score is 7.5 out of 10.