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CVE-2026-53455— Blueprint Studio Git credential helper command injection

Quick assessment

Affected
ha-china blueprint-studio
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Home Assistant Blueprint Studio是Home Assistant组织的一个文件编辑器。 Home Assistant Blueprint Studio 2.5.2之前版本存在命令注入漏洞，该漏洞源于在custom_components/blueprint_studio/backend/git_manager.py中生成shell型Git凭据助手时未验证凭据值，直接将Git用户名和令牌插入可执行脚本，可能导致攻击者注入shell命令并以Home Assistant操作系统权限访问

CVSS 8.6 · High EPSS 0.38% · P30

Affected Version Matrix 1

VendorProduct Version RangeStatus
ha-china blueprint-studio < 2.5.2 affected
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I. Basic Information for CVE-2026-53455

Vulnerability Information
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Vulnerability Title
Blueprint Studio Git credential helper command injection
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Home Assistant Blueprint Studio 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Home Assistant Blueprint Studio是Home Assistant组织的一个文件编辑器。 Home Assistant Blueprint Studio 2.5.2之前版本存在命令注入漏洞，该漏洞源于在custom_components/blueprint_studio/backend/git_manager.py中生成shell型Git凭据助手时未验证凭据值，直接将Git用户名和令牌插入可执行脚本，可能导致攻击者注入shell命令并以Home Assistant操作系统权限访问
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ha-china blueprint-studio < 2.5.2 -

II. Public POCs for CVE-2026-53455

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7279 chars
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III. Intelligence Information for CVE-2026-53455

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Patches & Fixes for CVE-2026-53455 (2)

Vendor Advisories for CVE-2026-53455 (1)

Same Patch Batch · ha-china · 2026-08-18 · 6 CVEs total

CVE-2026-53453 8.7 HIGH Blueprint Studio API authorization bypass for non-admin Home Assistant users
CVE-2026-53454 6.9 MEDIUM Blueprint Studio stored Git credentials in plaintext Git credential store
CVE-2026-53456 5.6 MEDIUM Blueprint Studio terminal SSH private key written to disk
CVE-2026-53458 5.3 MEDIUM Blueprint Studio API exposed internal exception details
CVE-2026-53457 5.1 MEDIUM Blueprint Studio terminal command working directory not bounded to config directory

IV. Related Vulnerabilities

Same product: blueprint-studio
Same vendor: ha-china
Same weakness: CWE-78

V. Comments for CVE-2026-53455

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