CVE-2026-6564— EMQ EMQX Enterprise Session Handling improper authorization
Quick assessment
Affected
EMQ EMQX Enterprise
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.
EMQ EMQX Enterprise是中国EMQ公司的一款高性能分布式消息代理平台。 EMQ EMQX Enterprise 6.1.0及之前版本存在安全漏洞，该漏洞源于会话处理组件授权不当。
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I. Basic Information for CVE-2026-6564
Vulnerability Information
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Vulnerability Title
EMQ EMQX Enterprise Session Handling improper authorization
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in EMQ EMQX Enterprise up to 6.1.0. The impacted element is an unknown function of the component Session Handling. The manipulation results in improper authorization. It is possible to launch the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
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
授权机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
EMQ EMQX Enterprise 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
EMQ EMQX Enterprise是中国EMQ公司的一款高性能分布式消息代理平台。 EMQ EMQX Enterprise 6.1.0及之前版本存在安全漏洞，该漏洞源于会话处理组件授权不当。
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 |
|---|---|---|---|---|
| EMQ | EMQX Enterprise | 6.0 | - |
|
II. Public POCs for CVE-2026-6564
| # | POC Description | Source Link | Shenlong Link |
|---|
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Proof of Concept for CVE-2026-6564 (1)
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🔗 GitHub - cailiujia/CVE: EMQX Enterprise 6.1.0 and earlier is vulnerable to denial of service due to improper session management. An authenticated attacker can connect using another user's Client ID, causing the broker to disconnect the victim's client. Client IDs are not bound to specific users, allowing cross‑user session takeover. · GitHub Read full article exploit
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V. Comments for CVE-2026-6564
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