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CVE-2026-33434— Wazuh: Rate Limit Bypass via /events Endpoint

Quick assessment

Affected
wazuh wazuh
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是美国Wazuh公司开源的一个应用软件。用于收集,汇总,索引和分析安全数据,帮助组织检测入侵,威胁和行为异常。 Wazuh 存在资源管理错误漏洞，该漏洞源于CheckRateLimitsMiddleware.dispatch()中的逻辑错误，导致/events端点速率检查无条件覆盖通用速率限制结果，允许在超出全局速率限制的情况下向analysisd注入事件。以下版本受到影响：4.14.5之前版本（4.6.0及以上）的wazuh版本。

CVSS 4.3 · Medium EPSS 0.40% · P32

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
wazuh wazuh >= 4.6.0, < 4.14.5 affected
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I. Basic Information for CVE-2026-33434

Vulnerability Information
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Vulnerability Title
Wazuh: Rate Limit Bypass via /events Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
Wazuh is a free and open source platform used for threat prevention, detection, and response. In versions 4.6.0 and above, prior to 4.14.5, a logic error in CheckRateLimitsMiddleware.dispatch() causes the /events endpoint rate check to unconditionally overwrite the general rate limit result. When the global max_request_per_minute is exceeded, requests to /events still succeed if the events-specific counter (hardcoded 30/min) has not been reached. This allows event injection into analysisd beyond the admin-configured global rate limit. This issue has been fixed in version 4.14.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
交互频率的控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Wazuh 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wazuh是美国Wazuh公司开源的一个应用软件。用于收集,汇总,索引和分析安全数据,帮助组织检测入侵,威胁和行为异常。 Wazuh 存在资源管理错误漏洞，该漏洞源于CheckRateLimitsMiddleware.dispatch()中的逻辑错误，导致/events端点速率检查无条件覆盖通用速率限制结果，允许在超出全局速率限制的情况下向analysisd注入事件。以下版本受到影响：4.14.5之前版本（4.6.0及以上）的wazuh版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
wazuh wazuh >= 4.6.0, < 4.14.5 -

II. Public POCs for CVE-2026-33434

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III. Intelligence Information for CVE-2026-33434

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Vendor Advisories for CVE-2026-33434 (1)

Same Patch Batch · wazuh · 2026-07-16 · 5 CVEs total

CVE-2026-39359 7.5 HIGH Wazuh: Unauthenticated Path Traversal in authd via Agent Group Name
CVE-2026-34150 7.5 HIGH Wazuh: Heap buffer overflow in wazuh-analysisd via rootcheck event parsing
CVE-2026-33754 6.5 MEDIUM Wazuh: Unauthenticated cluster packet length leads to uncontrolled memory allocation (remo
CVE-2026-40106 4.7 MEDIUM Wazuh: Heap-based Buffer Overflow in syscheck Registry Wildcard Expansion (LPE / DoS)

IV. Related Vulnerabilities

Same product: wazuh
Same vendor: wazuh
Same weakness: CWE-799

V. Comments for CVE-2026-33434

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