CVE-2026-53457: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in ha-china blueprint-studio
CVE-2026-53457 is a path traversal vulnerability in ha-china blueprint-studio, a VS Code-like editor for Home Assistant configuration files. Prior to version 2.5.2, the legacy terminal command execution accepted a working-directory parameter without restricting it to the Home Assistant configuration directory. This allowed an administrator using the restricted terminal helper to select directories outside the intended boundary, potentially accessing or modifying host filesystem paths permitted by container and filesystem permissions. The issue is fixed in version 2.5.2.
AI Analysis
Technical Summary
Blueprint Studio's legacy stateless terminal command execution path in custom_components/blueprint_studio/backend/terminal_manager.py accepted a cwd parameter that was only checked for existence but not confined within the Home Assistant configuration directory. This improper limitation of pathname to a restricted directory (CWE-22) allowed an administrator using the restricted terminal helper to select directories outside the intended configuration boundary, weakening filesystem restrictions. The vulnerability is addressed in version 2.5.2.
Potential Impact
An administrator with access to the restricted terminal helper could select directories outside the Home Assistant configuration directory, potentially allowing commands to access or modify host filesystem paths permitted by the container and filesystem permissions. This weakens the expected filesystem restrictions of the helper, potentially exposing sensitive files or enabling unauthorized modifications within the host environment.
Mitigation Recommendations
This vulnerability is fixed in ha-china blueprint-studio version 2.5.2. Users should upgrade to version 2.5.2 or later to remediate this issue. No other mitigation guidance is provided.
CVE-2026-53457: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in ha-china blueprint-studio
Description
CVE-2026-53457 is a path traversal vulnerability in ha-china blueprint-studio, a VS Code-like editor for Home Assistant configuration files. Prior to version 2.5.2, the legacy terminal command execution accepted a working-directory parameter without restricting it to the Home Assistant configuration directory. This allowed an administrator using the restricted terminal helper to select directories outside the intended boundary, potentially accessing or modifying host filesystem paths permitted by container and filesystem permissions. The issue is fixed in version 2.5.2.
CVSS v4.0
Score 5.1medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Blueprint Studio's legacy stateless terminal command execution path in custom_components/blueprint_studio/backend/terminal_manager.py accepted a cwd parameter that was only checked for existence but not confined within the Home Assistant configuration directory. This improper limitation of pathname to a restricted directory (CWE-22) allowed an administrator using the restricted terminal helper to select directories outside the intended configuration boundary, weakening filesystem restrictions. The vulnerability is addressed in version 2.5.2.
Potential Impact
An administrator with access to the restricted terminal helper could select directories outside the Home Assistant configuration directory, potentially allowing commands to access or modify host filesystem paths permitted by the container and filesystem permissions. This weakens the expected filesystem restrictions of the helper, potentially exposing sensitive files or enabling unauthorized modifications within the host environment.
Mitigation Recommendations
This vulnerability is fixed in ha-china blueprint-studio version 2.5.2. Users should upgrade to version 2.5.2 or later to remediate this issue. No other mitigation guidance is provided.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-09T16:31:21.495Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a84ca1cc6e8be0332c0b1d0
Added to database: 08/18/2026, 21:09:48 UTC
Last enriched: 08/18/2026, 21:21:08 UTC
Last updated: 08/19/2026, 00:23:49 UTC
Views: 4
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