---
id: CVE-2026-74035
title: >-
  Wazuh versions from 4.6.0 before 4.14.8 contain an authentication bypass
  vulnerability where security.update_user places the reserved user guard and
  password policy inside a falsy truthiness check
summary: >-
  Wazuh versions from 4.6.0 before 4.14.8 contain an authentication bypass
  vulnerability where security.update_user places the reserved user guard and
  password policy inside a falsy truthiness check. A delegated user
  administrator can send…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-863
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T17:17:45.403'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-74035'
references:
  - url: 'https://github.com/wazuh/wazuh/releases/tag/v4.14.8'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/wazuh/wazuh/security/advisories/GHSA-27gv-q7q6-f5qh'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/wazuh-4.6.0-before-4.14.8-authentication-bypass-via-empty-password-in-update-user
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-13T14:29:01.861Z'
---

## Overview

Wazuh versions from 4.6.0 before 4.14.8 contain an authentication bypass vulnerability where security.update_user places the reserved user guard and password policy inside a falsy truthiness check. A delegated user administrator can send an empty password to the user update endpoint, bypassing the reserved user guard to take over the wazuh superuser account and authenticate with empty credentials.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.