Vulnerability Description
Blueprint Studio is a VS Code-like file editor for Home Assistant configuration files. Prior to 2.5.2, Blueprint Studio terminal SSH key authentication in custom_components/blueprint_studio/backend/terminal_manager.py wrote SSH private-key material to a file under the Home Assistant configuration directory before applying restrictive permissions and relied on best-effort cleanup. The key could temporarily remain on disk and could persist if cleanup failed or Home Assistant crashed. A user or process with filesystem access to the Home Assistant configuration directory could obtain the residual private key. This issue is fixed in version 2.5.2.
Related Weaknesses (CWE)
References
- https://github.com/ha-china/blueprint-studio/commit/943aed0be67f3a910b0f70a38642
- https://github.com/ha-china/blueprint-studio/releases/tag/v2.5.2
- https://github.com/ha-china/blueprint-studio/security/advisories/GHSA-3vg8-xf27-
FAQ
What is CVE-2026-53456?
CVE-2026-53456 is a documented vulnerability. Blueprint Studio is a VS Code-like file editor for Home Assistant configuration files. Prior to 2.5.2, Blueprint Studio terminal SSH key authentication in custom_components/blueprint_studio/backend/te...
How severe is CVE-2026-53456?
CVSS scoring is not yet available for CVE-2026-53456. Check NVD for updates.
Is there a patch for CVE-2026-53456?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.