CVE-2026-74034: Missing Authorization in Wazuh wazuh-manager
Description
CVE-2026-74034 is a high-severity vulnerability in Wazuh wazuh-manager versions 4.1.0 through before 4.14.8. It involves a missing origin check in the wm_agent_upgrade component, allowing enrolled agents to send upgrade_custom commands with attacker-controlled file paths. This flaw enables attackers to read arbitrary files as root, including sensitive files like /etc/shadow and client.keys, potentially leading to credential exposure.
CVSS v4.0
Score 8.7high
Affected software
Wazuh
wazuh-manager
pkg:github/wazuh-managerRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Wazuh wazuh-manager versions >=4.1.0 and <4.14.8 contain a missing authorization check in the wm_agent_upgrade function. Enrolled agents can exploit this by injecting upgrade_custom messages with attacker-controlled file_path parameters over the agent communication channel. This vulnerability allows unauthorized reading of arbitrary files on the server with root privileges, including critical system files such as /etc/shadow and client.keys, which could lead to credential compromise.
Potential Impact
An attacker with an enrolled agent can exploit this vulnerability to read arbitrary files on the wazuh-manager server as root. This includes highly sensitive files like /etc/shadow and client.keys, which contain password hashes and cryptographic keys, respectively. The exposure of these files can lead to full system compromise or lateral movement within the environment.
Mitigation Recommendations
The vulnerability affects Wazuh wazuh-manager versions from 4.1.0 up to but not including 4.14.8. Users should upgrade to version 4.14.8 or later where this issue is fixed. Since no vendor advisory or patch link is provided in the input, confirm patch availability and upgrade guidance from the official Wazuh resources. Until patched, restrict agent enrollment and monitor for suspicious upgrade_custom commands.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-14T14:06:40.512Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ace36e12cdf04f65668a692
Added to database: 10/13/2026, 13:49:21 UTC
Last enriched: 10/13/2026, 14:04:24 UTC
Last updated: 10/13/2026, 18:57:34 UTC
Views: 7
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