CVE-2026-64825
CVE-2026-64825 · Home Assistant Core < 2026.6.0 Path Traversal File Write via Backup Upload
This page contains facts from public vulnerability sources. Check the original advisory before updating.
This page shows selected source facts. See the linked advisories for the complete description and affected versions.
Home Assistant Core before 2026.6.0 contains a path traversal vulnerability that allows unauthenticated attackers to write arbitrary files to any directory on the host filesystem by uploading a crafted backup archive during the initial onboarding window. Attackers can manipulate the 'name' field inside the uploaded archive's backup.json to supply an absolute path, causing pathlib.Path.__truediv__ to discard the configured backup directory prefix and write attacker-controlled content to arbitrary locations, with full filesystem access when the process runs as root.
CVSS 9.0 · Critical · EPSS 0.6% · Fix available
- Published
- Updated
Stack: python
Affected products and versions
home assistant core
- Versions
- ≥ 0, < 2026.6.0: Affected (semver)
Update to 2026.6.0
homeassistant PyPI
- Versions
- 0.10.0
- 0.10.1
- 0.100.0
- 0.100.0b0
- 0.100.0b1
- 0.100.0b2
- 0.100.0b3
- 0.100.1
- 0.100.2
- 0.100.3
- 0.101.0
- 0.101.0b0
- 0.101.0b1
- 0.101.0b2
- 0.101.0b3
- 0.101.0b4
- 0.101.1
- 0.101.2
- 0.101.3
- 0.102.0
- 0.102.0b0
- 0.102.0b1
- 0.102.0b2
- 0.102.0b3
- 0.102.1
- 0.102.2
- 0.102.3
- 0.103.0
- 0.103.0b0
- 0.103.0b1
- 0.103.1
- 0.103.2
- 0.103.3
- 0.103.4
- 0.103.5
- 0.103.6
- 0.104.0
- 0.104.0b0
- 0.104.0b1
- 0.104.0b2
- 0.104.0b3
- 0.104.0b4
- 0.104.0b5
- 0.104.1
- 0.104.2
- 0.104.3
- 0.105.0
- 0.105.0b0
- 0.105.0b5
- 0.105.0b6
- 0.105.0b7
- 0.105.1
- 0.105.2
- 0.105.3
- 0.105.4
- 0.105.5
- 0.106.0
- 0.106.0b0
- 0.106.0b5
- 0.106.1
- 0.106.2
- 0.106.3
- 0.106.4
- 0.106.5
- 0.106.6
- 0.107.0
- 0.107.0b0
- 0.107.0b1
- 0.107.0b2
- 0.107.0b3
- 0.107.0b4
- 0.107.0b5
- 0.107.0b8
- 0.107.1
- 0.107.2
- 0.107.3
- 0.107.4
- 0.107.5
- 0.107.6
- 0.107.7
- 0.108.0
- 0.108.0b0
- 0.108.0b1
- 0.108.0b2
- 0.108.0b3
- 0.108.0b4
- 0.108.0b5
- 0.108.0b6
- 0.108.1
- 0.108.2
- 0.108.3
- 0.108.4
- 0.108.5
- 0.108.6
- 0.108.7
- 0.108.8
- 0.108.9
- 0.109.0
- 0.109.0b0
- 0.109.0b4
- 0.109.0b5
- 0.109.1
- 0.109.2
- 0.109.3
- 0.109.4
- 0.109.5
- 0.109.6
- 0.11.0
- 0.11.1
- 0.110.0
- 0.110.0b0
- 0.110.0b1
- 0.110.0b2
- 0.110.0b3
- 0.110.0b4
- 0.110.0b5
- 0.110.1
- 0.110.2
- 0.110.3
- 0.110.4
- 0.110.5
- 0.110.6
- 0.110.7
- 0.111.0
- 0.111.0b0
- 0.111.0b1
- 0.111.0b2
- 0.111.0b3
- 0.111.0b4
- 0.111.0b5
- 0.111.1
- 0.111.2
- 0.111.3
- 0.111.4
- 0.112.0
- 0.112.0b0
- 0.112.0b1
- 0.112.0b2
- 0.112.0b3
- 0.112.0b4
- 0.112.1
- 0.112.2
- 0.112.3
- 0.112.4
- 0.112.5
- 0.113.0
- 0.113.0b0
- 0.113.0b1
- 0.113.0b2
- 0.113.0b3
- 0.113.1
- 0.113.2
- 0.113.3
- 0.114.0
- 0.114.0b0
- 0.114.0b1
- 0.114.0b2
- 0.114.0b3
- 0.114.0b4
- 0.114.1
- 0.114.2
- 0.114.3
- 0.114.4
- 0.115.0
- 0.115.0b0
- 0.115.0b1
- 0.115.0b10
- 0.115.0b11
- 0.115.0b12
- 0.115.0b2
- 0.115.0b3
- 0.115.0b4
- 0.115.0b5
- 0.115.0b6
- 0.115.0b7
- 0.115.0b8
- 0.115.0b9
- 0.115.1
- 0.115.2
- 0.115.3
- 0.115.4
- 0.115.5
- 0.115.6
- 0.116.0
- 0.116.0b0
- 0.116.0b1
- 0.116.0b2
- 0.116.0b3
- 0.116.0b4
- 0.116.0b5
- 0.116.1
- 0.116.2
- 0.116.3
- 0.116.4
- 0.117.0
- 0.117.0b0
- 0.117.0b1
- 0.117.0b2
- 0.117.0b3
- 0.117.0b4
- 0.117.0b5
- 0.117.0b6
- 0.117.1
- 0.117.2
- 0.117.3
- 0.117.4
- 0.117.5
- 0.117.6
- 0.118.0
- 0.118.0b0
- 0.118.0b1
- 0.118.0b2
- 0.118.0b3
- 0.118.1
- 0.118.2
- 0.118.3
- 0.118.4
- 0.118.5
- 0.12.0
- 0.13.0
- 0.13.1
- 0.14.0
- 0.14.1
- 0.14.2
- 0.15.0
- 0.16.0
- 0.16.1
- 0.17.0
- 0.17.1
- 0.17.2
- 0.17.3
- 0.18.0
- 0.18.2
- 0.19
- 0.19.1
- 0.19.2
- 0.19.3
- 0.19.4
- 0.20.0
- 0.20.1
- 0.20.2
- 0.20.3
- 0.21.0
- 0.21.1
- 0.21.2
- 0.22.0
- 0.22.1
- 0.23.0
- 0.23.1
- 0.24.0
- 0.24.1
- 0.25.0
- 0.25.1
- 0.25.2
- 0.26.0
- 0.26.1
- 0.26.2
- 0.26.3
- 0.27.0
- 0.27.1
- 0.27.2
- 0.28.0
- 0.28.1
- 0.28.2
- 0.29.0
- 0.29.1
- 0.29.2
- 0.29.3
- 0.29.4
- 0.29.5
- 0.29.6
- 0.29.7
- 0.30.0
- 0.30.1
- 0.30.2
- 0.31.0
- 0.31.1
- 0.32.0
- 0.32.1
- 0.32.2
- 0.32.3
- 0.32.4
- 0.33.0
- 0.33.1
- 0.33.2
- 0.33.3
- 0.33.4
- 0.34.0
- 0.34.1
- 0.34.2
- 0.34.3
- 0.34.4
- 0.34.5
- 0.35.0
- 0.35.1
- 0.35.2
- 0.35.3
- 0.36.0
- 0.36.1
- 0.37.0
- 0.37.1
- 0.38.0
- 0.38.1
- 0.38.2
- 0.38.3
- 0.38.4
- 0.39.0
- 0.39.1
- 0.39.2
- 0.39.3
- 0.40.0
- 0.40.1
- 0.40.2
- 0.41.0
- 0.42.0
- 0.42.1
- 0.42.2
- 0.42.3
- 0.42.4
- 0.43.0
- 0.43.1
- 0.43.2
- 0.44.0
- 0.44.1
- 0.45.0
- 0.45.1
- 0.46.0
- 0.46.1
- 0.47.0
- 0.47.1
- 0.48.0
- 0.48.1
- 0.49.0
- 0.49.1
- 0.50.1
- 0.50.2
- 0.51.0
- 0.51.1
- 0.51.2
- 0.52.0
- 0.52.1
- 0.53.0
- 0.53.1
- 0.54.0
- 0.55.0
- 0.55.1
- 0.56.0
- 0.56.1
- 0.56.2
- 0.57.0
- 0.57.1
- 0.57.2
- 0.57.3
- 0.58.0
- 0.58.1
- 0.59.0
- 0.59.1
- 0.59.2
- 0.60.0
- 0.60.1
- 0.61.0
- 0.61.1
- 0.62.0
- 0.62.1
- 0.63.0
- 0.63.1
- 0.63.2
- 0.63.3
- 0.64.0
- 0.64.1
- 0.64.2
- 0.64.3
- 0.64.4b0
- 0.65.0
- 0.65.1
- 0.65.2
- 0.65.3
- 0.65.4
- 0.65.5
- 0.65.6
- 0.66.0
- 0.66.0b0
- 0.66.0b1
- 0.66.0b2
- 0.66.0b3
- 0.66.1
- 0.66.1b0
- 0.67.0
- 0.67.0b0
- 0.67.0b1
- 0.67.1
- 0.68.0
- 0.68.0b0
- 0.68.0b1
- 0.68.0b2
- 0.68.1
- 0.69.0
- 0.69.0b0
- 0.69.1
- 0.7.0
- 0.7.0.1
- 0.7.0rc1
- 0.7.1
- 0.7.2
- 0.7.3
- 0.7.4
- 0.7.5
- 0.7.6
- 0.7.7
- 0.70.0
- 0.70.0b0
- 0.70.0b1
- 0.70.0b2
- 0.70.0b3
- 0.70.0b4
- 0.70.0b5
- 0.70.0b6
- 0.70.0b7
- 0.70.1
- 0.71.0
- 0.71.0b0
- 0.72.0
- 0.72.0b0
- 0.72.0b1
- 0.72.0b2
- 0.72.0b4
- 0.72.0b5
- 0.72.0b6
- 0.72.0b7
- 0.72.0b8
- 0.72.0b9
- 0.72.1
- 0.73.0
- 0.73.0b0
- 0.73.0b1
- 0.73.0b2
- 0.73.0b3
- 0.73.0b4
- 0.73.0b5
- 0.73.0b6
- 0.73.1
- 0.73.2
- 0.74.0
- 0.74.0b0
- 0.74.0b2
- 0.74.0b3
- 0.74.0b4
- 0.74.1
- 0.74.2
- 0.75.0
Update to 2026.6.0
Original sources
- https://github.com/home-assistant/core/releases/tag/2026.6.0
- https://github.com/home-assistant/core/pull/172368
- https://github.com/home-assistant/core/commit/567fe858289876b68b8162a77bd46e1e1af79752
- https://www.vulncheck.com/advisories/home-assistant-core-path-traversal-file-write-via-backup-upload
- https://nvd.nist.gov/vuln/detail/CVE-2026-64825