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.

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Wazuh wazuh-manager unaffected
Version Status Constraints
4.6.0 affected < 4.14.8
4.14.8 unaffected —

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No data.

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Project Subscriptions

Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/wazuh/wazuh/releases/tag/v4.14.8 cve-icon cve-icon
https://github.com/wazuh/wazuh/security/advisories/GHSA-27gv-q7q6-f5qh cve-icon cve-icon
https://www.vulncheck.com/advisories/wazuh-4.6.0-before-4.14.8-authentication-bypass-via-empty-password-in-update-user cve-icon cve-icon
History

Tue, 13 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Tue, 13 Oct 2026 13:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Wazuh 4.6.0 before 4.14.8 Authentication Bypass via Empty Password in update_user
First Time appeared Wazuh
Wazuh wazuh
Weaknesses CWE-863
CPEs cpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:*
Vendors & Products Wazuh
Wazuh wazuh
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-13T16:43:30.956Z

Reserved: 2026-08-14T14:06:40.512Z

Link: CVE-2026-74035

cve-icon Vulnrichment

Updated: 2026-10-13T16:40:41.857Z

cve-icon NVD

Status : Received

Published: 2026-10-13T14:17:40.253

Modified: 2026-10-13T17:17:45.403

Link: CVE-2026-74035

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-13T15:15:15Z

Weaknesses