Vulnerability · Published Oct 13, 2026 · Assigned by VulnCheck

CVE-2026-74035Wazuh 4.6.0 before 4.14.8 Authentication Bypass via Empty Password in update_user

High 7.2

In plain English

A high-severity incorrect authorization in wazuh-manager from Wazuh. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities).

Severity (CVSS 3.1)7.2High

Exploit odds (30 days)0.6%top 49.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Wazuh	wazuh-manager	4.6.0 – before 4.14.8

Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References

GitHub Security Advisory (GHSA-27gv-q7q6-f5qh) vendor-advisory
Wazuh v4.14.8 Release Notes patch, release-notes
VulnCheck Advisory: Wazuh 4.6.0 before 4.14.8 Authentication Bypass via Empty Password in update_user third-party-advisory