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CVE-2026-64825— Home Assistant Core < 2026.6.0 Path Traversal File Write via Backup Upload

Quick assessment

Affected
home-assistant Home Assistant Core
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

home-assistant Home Assistant Core是home-assistant社区的一款智能家居自动化平台。 home-assistant Home Assistant Core 2026.6.0之前版本存在路径遍历漏洞，该漏洞源于路径遍历问题，允许未经身份验证的攻击者在初始引导窗口期间上传特制的备份存档，操作备份存档中backup.json的'name'字段以提供绝对路径，导致路径前缀被丢弃，向任意目录写入任意文件。

CVSS 9.3 · Critical EPSS 0.58% · P46

Affected Version Matrix 1

VendorProduct Version RangeStatus
home-assistant Home Assistant Core < 2026.6.0 affected
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I. Basic Information for CVE-2026-64825

Vulnerability Information
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Vulnerability Title
Home Assistant Core < 2026.6.0 Path Traversal File Write via Backup Upload
Source: CVE Program / CVE List V5
Vulnerability Description
Home Assistant Core before 2026.6.0 contains a path traversal vulnerability that allows unauthenticated attackers to write arbitrary files to any directory on the host filesystem by uploading a crafted backup archive during the initial onboarding window. Attackers can manipulate the 'name' field inside the uploaded archive's backup.json to supply an absolute path, causing pathlib.Path.__truediv__ to discard the configured backup directory prefix and write attacker-controlled content to arbitrary locations, with full filesystem access when the process runs as root.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
home-assistant Home Assistant Core 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
home-assistant Home Assistant Core是home-assistant社区的一款智能家居自动化平台。 home-assistant Home Assistant Core 2026.6.0之前版本存在路径遍历漏洞，该漏洞源于路径遍历问题，允许未经身份验证的攻击者在初始引导窗口期间上传特制的备份存档，操作备份存档中backup.json的'name'字段以提供绝对路径，导致路径前缀被丢弃，向任意目录写入任意文件。
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
home-assistant Home Assistant Core 0 ~ 2026.6.0 -

II. Public POCs for CVE-2026-64825

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III. Intelligence Information for CVE-2026-64825

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Patches & Fixes for CVE-2026-64825 (2)

Vendor Advisories for CVE-2026-64825 (1)

Vendor Pages for CVE-2026-64825 (1)

Same Patch Batch · home-assistant · 2026-07-21 · 3 CVEs total

CVE-2026-64824 8.4 HIGH Home Assistant Core < 2026.7.0 Symlink Path Traversal RCE via backup-restore
CVE-2026-64823 4.7 MEDIUM Home Assistant Core < 2026.5.4 XSS via Shelly media_player.py thumb URI

IV. Related Vulnerabilities

Same product: Home Assistant Core
Same vendor: home-assistant
Same weakness: CWE-22

V. Comments for CVE-2026-64825

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