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Medium · 5.3 CVE-2026-53458 EUVD-2026-61483

Blueprint Studio API exposed internal exception details

Published Aug 18, 2026 · Updated Aug 19, 2026 · Assigned by GitHub_M

Description

Blueprint Studio is a VS Code-like file editor for Home Assistant configuration files. Prior to 2.5.2, Blueprint Studio backend API handlers in custom_components/blueprint_studio/backend/api.py returned raw exception strings to authenticated Home Assistant users. Some exception messages could contain internal filesystem paths or implementation details. The disclosed information could help an authenticated user fingerprint a Home Assistant installation and refine follow-up attacks. This issue is fixed in version 2.5.2.

Affected products

VendorProductAffectedFixed
ha-china blueprint-studio < 2.5.2 —

References