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TI-2026-46349 Aliases CVE-2026-64824GHSA-cwh8-w64c-4j5h

Home Assistant Core < 2026.7.0 Symlink Path Traversal RCE via backup-restore

Priority HIGH 75CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00713 53rd percentileScored 2026-11-07
Fix Fixed Home Assistant Core (home-assistant): 2026.7.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
home-assistantHome Assistant Corebefore 2026.7.02026.7.0Patch availableCNA
  • Home Assistant Core Vendorhome-assistant Affected before 2026.7.0 Fixed in 2026.7.0 Patch available CNA

Remediation

  • Fix · CNA Home Assistant Core (home-assistant) Fixed in 2026.7.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-64824
  2. 2026-10-03 Alias added: GHSA-cwh8-w64c-4j5h

References

Patch 2

Other 1

  • TI-2023-12210 Improper authentication in home-assistant core CVSS 3.1CRITICAL 10.0
  • TI-2021-22555 Home Assistant Community Store 1.10.0 Path Traversal Account Takeover CVSS 4.0HIGH 8.7
  • TI-2026-61899 Home Assistant: XSS in Statistics Graph Card CVSS 4.0CRITICAL 9.3
  • TI-2026-40307 Cleartext transmission of sensitive information in home-assistant core CVSS 3.1HIGH 7.5
  • TI-2025-38490 Home Assistant vulnerable to Stored XSS in Energy dashboard from Energy Entity Name CVSS 4.0HIGH 8.5
  • TI-2026-25491 Home Assistant has stored XSS in history-graphs CVSS 4.0HIGH 7.3
See all 32 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences