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.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://github.com/mqttsnet/thinglinks/commit/311ee760dad798f48652722989fcea0234
- https://github.com/mqttsnet/thinglinks/releases/tag/v1.4.0
- https://github.com/mqttsnet/thinglinks/security/advisories/GHSA-9vph-5ccx-qp9v
FAQ
What is CVE-2026-62853?
CVE-2026-62853 is a vulnerability with a CVSS score of 9.9 (CRITICAL). 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 compilatio...
How severe is CVE-2026-62853?
CVE-2026-62853 has been rated CRITICAL with a CVSS base score of 9.9/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-62853?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.