CVE-2026-62853
ThingLinks vulnerable to authenticated remote code execution via Groovy script registration in ThingLinks
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
ThingLinks vulnerable to authenticated remote code execution via Groovy script registration in ThingLinks
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.
- Record
CVE-2026-62853- CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-78, CWE-94
- Updated
- 2026-11-06
EUVDEUVD-2026-114455
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.
- Record
EUVD-2026-114455- CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Updated
- 2026-11-06
NVD
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.
- Record
CVE-2026-62853- CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-78, CWE-94
- Updated
- 2026-11-06
OSV
ThingLinks vulnerable to authenticated remote code execution via Groovy script registration in ThingLinks
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.
- Record
CVE-2026-62853- CVSS 3.1
- 9.9 Critical
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - Weakness
- CWE-78, CWE-94
- Updated
- 2026-11-07
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | NVD, OSV | |
| first indexed | CVE List, EUVD, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-62853 is a critical vulnerability (CVSS 9.9) in Mqttsnet Thinglinks, published October 30, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.41%, the 35th percentile. No source names a fixed version.
References
github.com/mqttsnet/thinglinks/security/advisories/GHSA-9vph-5ccx-qp9v
nvd.nist.gov/vuln/detail/CVE-2026-62853