CVE-2026-53676

HIGH

ThingsBoard - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Title source: rule

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).

References (3)

Core 3

Core References

https://thingsboard.io/docs/releases/releases-table/

https://github.com/thingsboard/thingsboard/pull/15600

https://jvn.jp/en/jp/JVN16937365/

Scores

CVSS v3 7.2

EPSS 0.0060

EPSS Percentile 44.5%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-1321

Status published

Products (1)

ThingsBoard/ThingsBoard prior to v4.3.1.2

Published Jun 17, 2026

Tracked Since Jun 18, 2026