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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Home-Assistant Home Assistant Community Store (HACS) affected
Version Status Constraints
0 affected < 1.10.0

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/hacs/integration cve-icon cve-icon
https://www.exploit-db.com/exploits/49495 cve-icon cve-icon
https://www.home-assistant.io/ cve-icon cve-icon
https://www.vulncheck.com/advisories/home-assistant-community-store-path-traversal-account-takeover cve-icon cve-icon
History

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: 2026-05-16T15:28:07.743Z

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

Link: CVE-2021-47942

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

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

Modified: 2026-05-16T16:16:21.390

Link: CVE-2021-47942

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-16T16:30:27Z

Weaknesses