What is CVE-2026-62853?

CVE-2026-62853 is a critical-severity vulnerability, classified under OS Command Injection. CVSS score: 9.9/10. Published 2026-10-30.

How severe is CVE-2026-62853?

Critical severity. CVSS v3 base score is 9.9 out of 10.

CVE-2026-62853

CVE-2026-62853

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.

Vulnerability class: Command Injection (OS Command Injection)

Published 2026-10-30.

CVSS v3 metric

CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-62853?: CVE-2026-62853 is a critical-severity vulnerability, classified under OS Command Injection. CVSS score: 9.9/10. Published 2026-10-30.
How severe is CVE-2026-62853?: Critical severity. CVSS v3 base score is 9.9 out of 10.