CVE-2026-74034

HIGH 7.5

Wazuh 4.1.0 before 4.14.8 Arbitrary File Read via upgrade_custom Command

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-862
Vendor	wazuh
Product	wazuh-manager
Published	Oct 13, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

Wazuh / wazuh-manager

4.1.0 < 4.14.8

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/wazuh/wazuh/security/advisories/GHSA-r7hm-43xr-477j github.com: https://github.com/wazuh/wazuh/releases/tag/v4.14.8 vulncheck.com: https://www.vulncheck.com/advisories/wazuh-4.1.0-before-4.14.8-arbitrary-file-read-via-upgrade-custom-command

Credits

🔍 kah-ja vikman90