๐Ÿ” CVE Alert

CVE-2026-62853

CRITICAL 9.9

ThingLinks vulnerable to authenticated remote code execution via Groovy script registration in ThingLinks

CVSS Score
9.9
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-78 CWE-94
Vendor mqttsnet
Product thinglinks
Published Oct 30, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Affected Versions

mqttsnet / thinglinks
< 1.4.0

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
github.com: https://github.com/mqttsnet/thinglinks/security/advisories/GHSA-9vph-5ccx-qp9v github.com: https://github.com/mqttsnet/thinglinks/commit/311ee760dad798f48652722989fcea02349e13a3 github.com: https://github.com/mqttsnet/thinglinks/releases/tag/v1.4.0