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

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.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• https://github.com/mqttsnet/thinglinks/security/advisories/GHSA-9vph-5ccx-qp9v
• https://github.com/mqttsnet/thinglinks/commit/311ee760dad798f48652722989fcea02349e13a3
• https://github.com/mqttsnet/thinglinks/releases/tag/v1.4.0