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CVE-2026-44725— EMQX: Stale plugins allow grants amplify a compromised admin/API key to remote code execution

Quick assessment

Affected
emqx emqx
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.

EMQX 是一款面向人工智能（AI）、物联网（IoT）、工业物联网（IIoT）和联网车辆的可扩展、可靠的 MQTT 消息代理（Broker）。在版本 5.8.11、5.9.3、5.10.4、6.0.3、6.1.2 和 6.2.1 之前，EMQX 的插件安装 REST API 和仪表盘上传功能存在安全漏洞，因为它们接受了通过 命令创建的过期授权（stale grants），缺乏五分钟的有效授权期限机制，也未对插件包进行 SHA-256 哈希绑定。 攻击者若已获得被 compromising 的仪表盘管理员凭据或拥有插

CVSS 6.6 · Medium EPSS 0.25% · P17

Affected Version Matrix 6

VendorProduct Version RangeStatus
emqx emqx < 5.8.11 affected
>= 5.9.0, < 5.9.3 affected
>= 5.10.0, < 5.10.4 affected
>= 6.0.0, < 6.0.3 affected
>= 6.1.0, < 6.1.2 affected
>= 6.2.0, < 6.2.1 affected
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I. Basic Information for CVE-2026-44725

Vulnerability Information
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Vulnerability Title
EMQX: Stale plugins allow grants amplify a compromised admin/API key to remote code execution
Source: CVE Program / CVE List V5
Vulnerability Description
EMQX is a scalable and reliable MQTT broker for AI, IoT, IIoT, and connected vehicles. Prior to versions 5.8.11, 5.9.3, 5.10.4, 6.0.3, 6.1.2, and 6.2.1, the plugin-install REST API and dashboard upload accepted stale grants created with emqx ctl plugins allow because there was no five-minute grant lifetime or SHA-256 package binding. An attacker with a compromised dashboard administrator credential or API key with plugin-install permission who finds a stale allowed name and version can upload attacker-controlled bytes under the allowed .tar.gz filename through POST /api/v5/plugins/install or the dashboard plugin upload. The broker then installs and runs attacker-controlled Erlang code with the privileges of the EMQX process. This issue is fixed in versions 5.8.11, 5.9.3, 5.10.4, 6.0.3, 6.1.2, and 6.2.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对数据真实性的验证不充分
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
emqx emqx < 5.8.11 -

II. Public POCs for CVE-2026-44725

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III. Intelligence Information for CVE-2026-44725

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Patches & Fixes for CVE-2026-44725 (4)

Vendor Advisories for CVE-2026-44725 (1)

Vendor Pages for CVE-2026-44725 (4)

IV. Related Vulnerabilities

Same product: emqx
Same vendor: emqx
Same weakness: CWE-345

V. Comments for CVE-2026-44725

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