CVE-2026-53456
Blueprint Studio terminal SSH private key written to disk
- State
- Published
- Severity
- 5.6 Medium
- Published
- Aug 18, 2026
- Updated
- Aug 19, 2026
- Reserved
- Jun 9, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.6 Medium | CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | GitHub_M |
Weaknesses
- CWE-522 Insufficiently Protected Credentials
Affected Products
| Product | Versions |
|---|---|
blueprint-studioha-china |
|
References
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