Published:2026/06/16  Last Updated:2026/06/16

JVN#16937365
ThingsBoard vulnerable to prototype pollution

Overview

ThingsBoard contains a prototype pollution vulnerability.

Products Affected

  • ThingsBoard versions prior to v4.3.1.2

Description

ThingsBoard contains the following vulnerability

  • Prototype Pollution (CWE-1321)
    • CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Base Score 8.6
    • CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Base Score 7.2
    • CVE-2026-53676

Impact

Arbitrary code may be executed within a sandboxed context by a user who can log in to the affected product with the tenant administrator privilege (TENANT_ADMIN).

Solution

Update the Software
Update the software to the latest version according to the information provided by the developer.

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Credit

HIROKI IMAI of LAC Co., Ltd. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2026-53676
JVN iPedia JVNDB-2026-000086