---
id: CVE-2026-53453
title: >-
  Blueprint Studio is a VS Code-like file editor for Home Assistant
  configuration files
summary: >-
  Blueprint Studio is a VS Code-like file editor for Home Assistant
  configuration files. Prior to 2.5.2, Blueprint Studio exposed
  administrator-intended backend API actions to any authenticated Home Assistant
  user because the backend did n…
severity: none
cwe:
  - CWE-862
published: '2026-08-18'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T21:02:26.047'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-53453'
references:
  - url: >-
      https://github.com/ha-china/blueprint-studio/commit/943aed0be67f3a910b0f70a3864288d5e17e55ce
    label: security-advisories@github.com
  - url: 'https://github.com/ha-china/blueprint-studio/releases/tag/v2.5.2'
    label: security-advisories@github.com
  - url: >-
      https://github.com/ha-china/blueprint-studio/security/advisories/GHSA-ppwq-ch6x-936g
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.0045
epssPercentile: 0.36363
ingestedAt: '2026-09-08T21:11:12.283Z'
---

## Overview

Blueprint Studio is a VS Code-like file editor for Home Assistant configuration files. Prior to 2.5.2, Blueprint Studio exposed administrator-intended backend API actions to any authenticated Home Assistant user because the backend did not consistently enforce the panel's admin-only authorization boundary. Affected surfaces included the backend API, upload API, stream routes, terminal WebSocket, Blueprint Studio WebSocket subscriptions, call_service, render_template, global_replace, file and stream access paths, upload handling, and terminal helpers. A non-admin user could invoke arbitrary Home Assistant services, expose Home Assistant state through templates, modify configuration files, access streamed or downloaded configuration content, upload files, or reach terminal-related helpers. These actions could compromise the confidentiality, integrity, and availability of the Home Assistant installation. This issue is fixed in version 2.5.2.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.