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.
- CVSS 4.0
- 9.3
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 - CVSS 3.1
- 8.4
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H - EPSS
- 0.7% chance of exploitation in the next 30 days; higher than 53% of CVEs (scores of 2026-10-25)
- CWE
- CWE-22
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-78r8-wwqv-r299 | PyPI | praisonai | <4.6.40 | 4.6.40 |
| PYSEC-2026-2905 | PyPI | praisonai | <4.6.40 | 4.6.40 |
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