CVE-2026-74035 PUBLISHED

Wazuh 4.6.0 before 4.14.8 Authentication Bypass via Empty Password in update_user

Assigner: VulnCheck
Reserved: 14.08.2026 Published: 13.10.2026 Updated: 13.10.2026

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.

CVSS 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
CVSS Score: 8.6

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	High	Availability	None
Privileges Required	High
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 7.2

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	High	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	Wazuh
Product	wazuh-manager
Versions	Default: unaffected affected from 4.6.0 to 4.14.8 (excl.) Version 4.14.8 is unaffected

CVE-2026-74035 PUBLISHED

Wazuh 4.6.0 before 4.14.8 Authentication Bypass via Empty Password in update_user

Metrics

Product Status

Credits

References

Problem Types