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CVE-2026-62853— ThingLinks vulnerable to authenticated remote code execution via Groovy script registration in ThingLinks

Quick assessment

Affected
mqttsnet thinglinks
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.

ThingLinks 是一款企业级物联网（IoT）平台。在 1.4.0 版本之前， 接口会接收用户提供的 Groovy 脚本内容，并将其传递给一个未加沙箱隔离的 Groovy 编译与加载流程。经过身份验证的攻击者可提交恶意代码，该代码将在服务器端被编译并实例化，从而导致任意服务端代码执行。此问题影响规则引擎中的 Groovy 脚本测试与注册流程。该漏洞已在 1.4.0 版本中修复。

CVSS 9.9 · Critical
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I. Basic Information for CVE-2026-62853

Vulnerability Information
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Vulnerability Title
ThingLinks vulnerable to authenticated remote code execution via Groovy script registration in ThingLinks
Source: CVE Program / CVE List V5
Vulnerability Description
ThingLinks is an enterprise IoT platform. Prior to 1.4.0, the `/groovyScriptTest/registerScript` endpoint accepts user-supplied Groovy script content and passes it to an unsandboxed `Groovy compilation and loading` flow. An authenticated attacker can provide code that is compiled and instantiated on the server, resulting in arbitrary server-side code execution. The issue affects the `rule engine`'s Groovy script test/register flow. This issue is fixed in version 1.4.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
mqttsnet thinglinks < 1.4.0 -

II. Public POCs for CVE-2026-62853

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III. Intelligence Information for CVE-2026-62853

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Other References for CVE-2026-62853 (3)

IV. Related Vulnerabilities

Same product: thinglinks
Same vendor: mqttsnet
Same weakness: CWE-78