SEPTEMBER 18, 2026
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Case File

CVE-2026-53456

MEDIUM · CVSS 5.6 EPSS 0.19% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-18 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

Blueprint Studio versions prior to 2.5.2 are vulnerable due to improper handling of SSH private keys, which are temporarily written to the Home Assistant configuration directory without adequate cleanup measures. This could allow an attacker with filesystem access to retrieve sensitive private key material, potentially compromising the security of the system. Users running affected versions should prioritize updating to 2.5.2 or later to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-53456
Severity
MEDIUM
CVSS
5.6
EPSS
0.19%

Original NVD 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.