Description
Home Assistant Core before 2026.7.0 contains a path traversal vulnerability in the backup-restore function that allows attackers to write files to arbitrary absolute filesystem paths by supplying a crafted tar archive with a SYMTYPE entry containing a benign member name paired with an absolute linkname pointing outside the extraction directory. Because the official Docker image runs the Home Assistant process as root and the subsequent regular-file entry is written through the unvalidated symlink, attackers can achieve remote code execution by overwriting auto-imported Python paths such as site-packages/sitecustomize.py or custom component directories.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| home-assistant | Home Assistant Core | < 2026.7.0 | 2026.7.0 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 1 repository
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Boreas37/CVE-2026-64824-PoC ★ 1 · Aug 10, 2026
CVE-2026-64824 — Home Assistant backup-restore symlink path traversal → root RCE. First working PoC, verified on real HA 2026.5.4 (sitecustomize.py overwrite). GHSA-cwh8-w64c-4j5h
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- Home Assistant Core 2026.7.0 Release Notes release-notes
- Pull Request issue-tracking patch
- Patch Commit patch
- https://www.vulncheck.com/advisories/home-assistant-core-symlink-path-traversal-rce-via-backup-restore third-party-advisory