Path Traversal in Home-Assistant Home Assistant Core
CVE-2026-64824
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.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.008 (54.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H.
Affected products
- Home-assistant Home Assistant Core — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- disclosure@vulncheck.com (release-notes)
- disclosure@vulncheck.com (issue-tracking)
- disclosure@vulncheck.com (patch)
- disclosure@vulncheck.com (third-party-advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0
- disclosure@vulncheck.com (release-notes)
Frequently asked questions
- What is CVE-2026-64824?
- CVE-2026-64824 is a high-severity vulnerability in Home-Assistant Home Assistant Core, classified under Path Traversal. CVSS score: 8.4/10. Published 2026-07-21.
- How severe is CVE-2026-64824?
- High severity. CVSS v3 base score is 8.4 out of 10.
- Is CVE-2026-64824 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.