CVE-2026-53676
High
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).
SeverityHigh
CVSS8.6
Exploit probability—
ProductThingsBoard
PublishedJun 17, 2026
First seenJun 17, 2026
Weakness typeCWE-1321Prototype pollution
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ThingsBoard ThingsBoard | prior to v4.3.1.2 | — |
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