Home Assistant Community Store (HACS) 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.

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Fixes

Solution

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Workaround

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History

Mon, 18 May 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sun, 17 May 2026 18:00:00 +0000

Type Values Removed Values Added
First Time appeared Home-assistant
Home-assistant home Assistant Community Store
Vendors & Products Home-assistant
Home-assistant home Assistant Community Store

Sat, 16 May 2026 15:45:00 +0000

Type Values Removed Values Added
Description Home Assistant Community Store (HACS) 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.
Title Home Assistant Community Store 1.10.0 Path Traversal Account Takeover
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 8.7, 'vector': '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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-18T19:59:01.009Z

Reserved: 2026-02-01T11:24:18.718Z

Link: CVE-2021-47942

cve-icon Vulnrichment

Updated: 2026-05-18T19:58:54.430Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-16T16:16:21.390

Modified: 2026-05-18T20:16:05.873

Link: CVE-2021-47942

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-17T17:00:30Z

Weaknesses