Critical
Home Assistant Core < 2026.7.0 Symlink Path Traversal RCE via backup-restore
Type: advisorySources: OSV
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-47398, CVE-2026-64824
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 16:58 UTC · Revision 1
Source evidence
Home Assistant Core < 2026.7.0 Symlink Path Traversal RCE via backup-restore
core-osv · Original sourcePublished 21 Jul 2026, 15:39 UTC
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.
osv:CVE-2026-64824
Complete source record
{
"id": "86bab1b86a4b5f91feb9695766da46cd3917e1bef8cea08811c49010bd709e51",
"url": "https://osv.dev/vulnerability/CVE-2026-64824",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Home Assistant Core < 2026.7.0 Symlink Path Traversal RCE via backup-restore",
"summary": "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.",
"evidence": "osv:CVE-2026-64824",
"products": [],
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"CVE-2026-64824",
"GHSA-78r8-wwqv-r299",
"PYSEC-2026-2905"
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"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H"
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],
"modified": "2026-10-28T02:30:37.653549531Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64824.json",
"https://github.com/home-assistant/core/releases/tag/2026.7.0",
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"https://github.com/home-assistant/core/pull/172252",
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"https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-78r8-wwqv-r299"
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"published_at": "2026-07-21T15:39:52.162+00:00"
}