CVE-2021-47942
Home Assistant Community Store 1.10.0 Path Traversal Account Takeover
- State
- Published
- Severity
- 8.7 High
- Published
- May 16, 2026
- Updated
- Aug 14, 2026
- Reserved
- Feb 1, 2026
Description
Home Assistant Community Store (HACS) prior to 1.10.0 contains a path traversal vulnerability that allows unauthenticated attackers to read sensitive files by traversing directories via the /hacsfiles/ endpoint. Attackers can retrieve the .storage/auth file containing user credentials and refresh tokens, then craft valid JWT tokens to gain administrative access to Home Assistant instances.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products
| Product | Versions |
|---|---|
Home Assistant Community Store (HACS)Home-Assistant |
|
References
- ExploitDB-49495exploit
- Official Product Homepageproduct
- Product Referenceproduct
- VulnCheck Advisory: Home Assistant Community Store 1.10.0 Path Traversal Account Takeoverthird-party-advisory
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