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.

Affected products

Home Assistant Core

Fix

Available

CVSS 4.0

9.3 CRITICAL

CVSS 3.1

8.4 HIGH

EPSS

0.6% (45th percentile)

Weakness

CWE-22

NVD status

Deferred

Published

2026-07-21