CVE-2026-74034: high-severity vulnerability in wazuh-manager
Wazuh 4.1.0 before 4.14.8 Arbitrary File Read via upgrade_custom Command
Published · Updated
41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 8.7epss 0.3%
from disclosure to weapon1 days
Published on NVDOct 13
1st PoC+1d
exploitation probability
0.3%top 74% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
Wazuh · wazuh-managerpublic PoCs found — 1
githubgithub.com/roninreilly/wazuh-unauth-chain★ 2⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — wazuh-manager
In the same product, most dangerous first.
CVE-2025-15616HIGHWazuh Agent and Manager OS Command Injection and Untrusted Search PathEPSS 1.6%CVE-2026-74044HIGHWazuh 4.0.0 < 4.14.6 Path Traversal Arbitrary Directory Deletion via Cluster HelloEPSS 0.6%CVE-2026-74046MEDIUMWazuh 4.4.0 < 4.14.7 DoS via fdecompress_files() Zip BombEPSS 0.6%CVE-2026-74039HIGHWazuh 4.0.0 < 4.14.7 API DoS via Deeply Nested JSON auth_contextEPSS 0.6%CVE-2026-74040CRITICALWazuh 3.9.0 before 4.14.8 Arbitrary File Overwrite RCE via process_files_from_workerEPSS 0.6%CVE-2026-74038HIGHWazuh 4.0.0 < 4.14.6 Path Traversal DoS via Agent EnrollmentEPSS 0.5%