CVE-2026-62853
Critical
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.
SeverityCritical
CVSS9.9
Exploit probability—
ProductMqttsnet Thinglinks
PublishedOct 30, 2026
First seenNov 4, 2026
Weakness typeCWE-78OS command injectionCWE-94Code injection
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mqttsnet thinglinks | < 1.4.0 | — |
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