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.

Attack Vector Network

Attack Complexity Low

Privileges Required High

Attack Requirements None

User Interaction Active

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact High

Subsequent System Availability Impact High

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
home-assistant Home Assistant Core affected
Version Status Constraints
0 affected < 2026.7.0

No data.

No data.

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-78r8-wwqv-r299 cve-icon
https://github.com/home-assistant/core/commit/1e457600f1093c15e1325742d03e2b76498c79c1 cve-icon
https://github.com/home-assistant/core/pull/172252 cve-icon
https://github.com/home-assistant/core/releases/tag/2026.7.0 cve-icon
https://www.vulncheck.com/advisories/home-assistant-core-symlink-path-traversal-rce-via-backup-restore cve-icon
History

Tue, 21 Jul 2026 17:45:00 +0000

Type Values Removed Values Added
Description Home Assistant Core before 2026.6.0 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. 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.
Title Home Assistant Core < 2026.6.0 Symlink Path Traversal RCE via backup-restore Home Assistant Core < 2026.7.0 Symlink Path Traversal RCE via backup-restore
References

Tue, 21 Jul 2026 17:30:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Tue, 21 Jul 2026 16:00:00 +0000

Type Values Removed Values Added
Description Home Assistant Core before 2026.6.0 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.
Title Home Assistant Core < 2026.6.0 Symlink Path Traversal RCE via backup-restore
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-07-21T17:19:07.002Z

Reserved: 2026-07-20T18:27:48.160Z

Link: CVE-2026-64824

cve-icon Vulnrichment

Updated: 2026-07-21T16:36:10.970Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses