CVE-2026-53453: high-severity vulnerability in ha-china blueprint-studio
Blueprint Studio API authorization bypass for non-admin Home Assistant users
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.4%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
ha-china · blueprint-studioRelated CVEs — ha-china blueprint-studio
In the same product, most dangerous first.
CVE-2026-53457MEDIUMBlueprint Studio terminal command working directory not bounded to config directoryEPSS 0.8%CVE-2026-53455HIGHBlueprint Studio Git credential helper command injectionEPSS 0.5%CVE-2026-53454MEDIUMBlueprint Studio stored Git credentials in plaintext Git credential storeEPSS 0.5%CVE-2026-53458MEDIUMBlueprint Studio API exposed internal exception detailsEPSS 0.5%CVE-2026-53456MEDIUMBlueprint Studio terminal SSH private key written to diskEPSS 0.2%