CVE-2026-53455
HighCVSS 8.6Exploitation Probability (EPSS)
Low risk31th percentile - higher than 31% of all known CVEs
Summary
Blueprint Studio before version 2.5.2 contains a command injection vulnerability in the Git credential helper, where username and token are interpolated without validation. An attacker who can set Git credentials can inject shell commands, leading to arbitrary command execution with Home Assistant privileges.
Risk Assessment
The risk includes full compromise of the Home Assistant system, including access to and modification of configuration files, potentially disrupting home automation.
Recommendation
Upgrade Blueprint Studio to version 2.5.2 or later, which includes the fix for credential validation.
Original NVD description (English source)
Blueprint Studio is a VS Code-like file editor for Home Assistant configuration files. Prior to 2.5.2, Blueprint Studio generated a shell-based Git credential helper in custom_components/blueprint_studio/backend/git_manager.py by interpolating the configured Git username and token directly into executable helper script content without validating credential values. An attacker able to set Git credentials could include newline characters or shell syntax in a username or token. When Git executed the generated credential helper, the injected shell commands ran with the operating-system privileges of Home Assistant and could access or modify Home Assistant configuration data. This issue is fixed in version 2.5.2.