CVE-2026-53456: medium-severity vulnerability in ha-china blueprint-studio
Blueprint Studio terminal SSH private key written to disk
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.6epss 0.2%
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.
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
Affected products
ha-china · blueprint-studioRelated CVEs — ha-china blueprint-studio
In the same product, most dangerous first.
CVE-2026-53457MEDIUMBlueprint Studio terminal command working directory not bounded to config directoryEPSS 0.8%CVE-2026-53455HIGHBlueprint Studio Git credential helper command injectionEPSS 0.5%CVE-2026-53454MEDIUMBlueprint Studio stored Git credentials in plaintext Git credential storeEPSS 0.5%CVE-2026-53458MEDIUMBlueprint Studio API exposed internal exception detailsEPSS 0.5%CVE-2026-53453HIGHBlueprint Studio API authorization bypass for non-admin Home Assistant usersEPSS 0.4%