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

Quick assessment

Affected
Wazuh wazuh-manager
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Wazuh 4.6.0 至 4.14.8 版本（不含 4.14.8）存在一个身份验证绕过漏洞。在该漏洞中， 函数将保留用户（reserved user）保护和密码策略的检查错误地放置在一个“虚假性”（falsy truthiness）判断条件下。攻击者若拥有委托的“用户管理员”权限，可通过向用户更新端点发送空密码，绕过保留用户保护机制，从而接管 Wazuh 超级用户账户，并使用空凭据进行身份验证。

CVSS 7.2 · High EPSS 0.50% · P42

Affected Version Matrix 2

VendorProduct Version RangeStatus
Wazuh wazuh-manager 4.6.0< 4.14.8 affected
4.14.8 unaffected
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I. Basic Information for CVE-2026-74035

Vulnerability Information
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Vulnerability Title
Wazuh 4.6.0 before 4.14.8 Authentication Bypass via Empty Password in update_user
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Wazuh wazuh-manager 4.6.0 ~ 4.14.8 -

II. Public POCs for CVE-2026-74035

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III. Intelligence Information for CVE-2026-74035

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Vendor Advisories for CVE-2026-74035 (2)

Vendor Pages for CVE-2026-74035 (1)

Same Patch Batch · Wazuh · 2026-10-13 · 15 CVEs total

CVE-2026-74041 9.1 CRITICAL Wazuh 4.14.3 before 4.14.8 Remote Command Validation Bypass via Case Mismatch
CVE-2026-74040 9.1 CRITICAL Wazuh 3.9.0 before 4.14.8 Arbitrary File Overwrite RCE via process_files_from_worker
CVE-2026-74043 9.0 CRITICAL Wazuh 4.1.1 before 4.14.8 Path Traversal via Cluster Upload Functions
CVE-2026-74034 7.5 HIGH Wazuh 4.1.0 before 4.14.8 Arbitrary File Read via upgrade_custom Command
CVE-2026-74036 7.2 HIGH Wazuh 4.3.0 before 4.14.8 Remote Code Execution via SCA Command Policies
CVE-2026-74037 7.2 HIGH Wazuh 4.0.0 before 4.14.8 Session Invalidation Bypass in check_token
CVE-2026-74045 7.1 HIGH Wazuh 3.12.0 before 4.14.8 Heap Buffer Overflow in wazuh-analysisd FIM Decoder
CVE-2026-74047 6.5 MEDIUM Wazuh 4.0.0 before 4.14.8 authd.pass Disclosure via Agent 000 Config Endpoint
CVE-2026-74031 6.5 MEDIUM Wazuh 4.1.1 before 4.14.8 Path Traversal File Deletion via Rule/Decoder Delete Helpers
CVE-2026-74033 6.1 MEDIUM Wazuh from 4.1.1 before 4.14.8 Path Traversal in CDB List Cluster Handlers
CVE-2026-93346 5.3 MEDIUM Wazuh 4.0.0 before 4.14.8 API Brute-Force Protection Bypass via Race Condition
CVE-2026-74030 4.9 MEDIUM Wazuh 3.9.0 before 4.14.8 Memory Exhaustion via SCA YAML Alias Expansion
CVE-2026-93347 4.9 MEDIUM Wazuh 4.1.1 before 4.14.8 Path Traversal via Cluster get_list_file
CVE-2026-74032 4.3 MEDIUM Wazuh 4.0.0 before 4.14.8 RBAC Authorization Bypass via /security/actions

IV. Related Vulnerabilities

Same product: wazuh-manager
Same vendor: Wazuh
Same weakness: CWE-863

V. Comments for CVE-2026-74035

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