{"id":"CVE-2026-53456","summary":"Blueprint Studio terminal SSH private key written to disk","details":"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.","aliases":["GHSA-3vg8-xf27-7q45"],"modified":"2026-09-10T03:30:36.226533572Z","published":"2026-08-18T20:50:21.016Z","database_specific":{"cwe_ids":["CWE-522"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53456.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://github.com/ha-china/blueprint-studio/releases/tag/v2.5.2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53456.json"},{"type":"ADVISORY","url":"https://github.com/ha-china/blueprint-studio/security/advisories/GHSA-3vg8-xf27-7q45"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53456"},{"type":"FIX","url":"https://github.com/ha-china/blueprint-studio/commit/943aed0be67f3a910b0f70a3864288d5e17e55ce"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ha-china/blueprint-studio","events":[{"introduced":"0"},{"fixed":"943aed0be67f3a910b0f70a3864288d5e17e55ce"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"2.5.2"}]}}],"versions":["v2.5.1","v2.5.0","v2.4.8","v2.4.7","v2.4.6","v2.4.4","v2.4.3","v2.4.2","v2.4.1","v2.4.0","v2.3.0","v2.2.2","v2.2.1","v2.2.0","v2.1.5","v2.1.4","v2.1.3","v2.1.2","v2.1.1","v2.1.0","v2.0.6","v2.0.5","v2.0.4","v2.0.3","v2.0.2","v2.0.1","v2.0.0","v1.5.2","v1.5.1","v1.5.0","v1.4.1","v1.4.0","v1.3.2","v1.3.1","v1.3.0","v1.2.1","v.1.2.0","v1.1.1","V1.1.0","v1.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53456.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}