What’s Vulnerable › Vulnerabilities

CVE-2026-64824: Home Assistant Core < 2026.7.0 Symlink Path Traversal RCE via backup-restore

• Severity: high (CVSS 8.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-21 · updated 2026-10-24
• Weakness: CWE-22

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.

Affected products

• home-assistant Home Assistant Core: before 2026.7.0 — fixed in 2026.7.0

How to fix

Upgrade to a fixed version: home-assistant Home Assistant Core 2026.7.0. Check the vendor advisory for mitigations.

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

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