{
  "id": "CVE-2026-62853",
  "url": "https://spydr.io/cve/CVE-2026-62853",
  "published": "2026-10-30T21:17:14.267Z",
  "modified": "2026-10-30T21:17:14.267Z",
  "score": 9.9,
  "severity": "critical",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
  "score_source": "github.com",
  "epss": null,
  "epss_percentile": null,
  "exploited": false,
  "kev": null,
  "ssvc_exploitation": null,
  "vendors": [
    "mqttsnet"
  ],
  "products": [
    "mqttsnet thinglinks"
  ],
  "cwes": [
    "CWE-78",
    "CWE-94"
  ],
  "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.",
  "status": "Received",
  "score_type": "Secondary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 9.9,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://github.com/mqttsnet/thinglinks/commit/311ee760dad798f48652722989fcea02349e13a3",
      "tags": []
    },
    {
      "url": "https://github.com/mqttsnet/thinglinks/releases/tag/v1.4.0",
      "tags": []
    },
    {
      "url": "https://github.com/mqttsnet/thinglinks/security/advisories/GHSA-9vph-5ccx-qp9v",
      "tags": []
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-62853",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}