Vulnerabilities CVE-2021-47942

CVE-2021-47942

High

Open

TLP:CLEAR

Home Assistant Community Store 1.10.0 Path Traversal Account Takeover

NVD CVE.org

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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.

Details

CVSS Score: 8.7
EPSS Score ⓘ: 0.50%

40.3th percentile
CVSS 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
Confidence: 90%
Published: May 16, 2026
Last Modified: Aug 14, 2026

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