Vulnerability · Published Jun 17, 2026 · Assigned by jpcert
CVE-2026-53676
High 7.2
In plain English
A high-severity prototype pollution in ThingsBoard from ThingsBoard. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 49% of all known vulnerabilities).
Severity (CVSS 3.0)7.2High
Exploit odds (30 days)0.6%top 51.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
ThingsBoard contains a prototype pollution vulnerability which may lead to arbitrary code execution within a sandboxed context by a user who can log in to the affected product with the tenant administrator privilege (TENANT_ADMIN).
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ThingsBoard | ThingsBoard | prior to v4.3.1.2 |
Weakness: CWE-1321 · Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H