CVE-2026-64824
Medium
Elevated severity or exploit probability.
CVSS base
8.4
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.8%
54.6th percentile
CISA KEV
Not listed
Weakness / dates
CWE-22
Published 2026-07-21 · modified 2026-07-21
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.
References
- https://github.com/home-assistant/core/commit/1e457600f1093c15e1325742d03e2b76498c79c1
- https://github.com/home-assistant/core/pull/172252
- https://github.com/home-assistant/core/releases/tag/2026.7.0
- https://www.vulncheck.com/advisories/home-assistant-core-symlink-path-traversal-rce-via-backup-restore
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-78r8-wwqv-r299