Vulnerability Description
Blueprint Studio is a VS Code-like file editor for Home Assistant configuration files. Prior to 2.5.2, the legacy stateless terminal command execution path in custom_components/blueprint_studio/backend/terminal_manager.py accepted a cwd working-directory parameter and checked only whether the directory existed, without requiring it to remain inside the Home Assistant configuration directory. An administrator using the restricted terminal helper could select an existing directory outside the intended configuration boundary. Commands could then access or modify host paths permitted by the Home Assistant container and filesystem permissions, weakening the helper's expected filesystem restriction. 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-5cc6-r4rr-
FAQ
What is CVE-2026-53457?
CVE-2026-53457 is a documented vulnerability. Blueprint Studio is a VS Code-like file editor for Home Assistant configuration files. Prior to 2.5.2, the legacy stateless terminal command execution path in custom_components/blueprint_studio/backen...
How severe is CVE-2026-53457?
CVSS scoring is not yet available for CVE-2026-53457. Check NVD for updates.
Is there a patch for CVE-2026-53457?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.