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TI-2021-22555 Aliases CVE-2021-47942GHSA-cqg8-v99m-gv9m

Home Assistant Community Store 1.10.0 Path Traversal Account Takeover

Priority HIGH 77CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00498 42nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix Fixed Home Assistant Community Store (HACS) (Home-Assistant): 1.10.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
home-assistantHome Assistant Community Store (HACS)before 1.10.01.10.0Patch availableCNA
  • Home Assistant Community Store (HACS) Vendorhome-assistant Affected before 1.10.0 Fixed in 1.10.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:hacs:home_assistant_community_store:*:*:*:*:*:*:*:*before 1.10.0VulnerableHacs
  • cpe:2.3:a:hacs:home_assistant_community_store:*:*:*:*:*:*:*:* Versions before 1.10.0 Vulnerable ·Hacs

Remediation

  • Fix · CNA Home Assistant Community Store (HACS) (Home-Assistant) Fixed in 1.10.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-47942
  2. 2026-10-03 Alias added: GHSA-cqg8-v99m-gv9m

References

Exploit 1

Other 2

  • TI-2023-12210 Improper authentication in home-assistant core CVSS 3.1CRITICAL 10.0
  • TI-2026-61899 Home Assistant: XSS in Statistics Graph Card CVSS 4.0CRITICAL 9.3
  • TI-2026-46349 Home Assistant Core < 2026.7.0 Symlink Path Traversal RCE via backup-restore CVSS 4.0CRITICAL 9.3
  • TI-2026-40307 Cleartext transmission of sensitive information in home-assistant core CVSS 3.1HIGH 7.5
  • TI-2025-38490 Home Assistant vulnerable to Stored XSS in Energy dashboard from Energy Entity Name CVSS 4.0HIGH 8.5
  • TI-2026-25491 Home Assistant has stored XSS in history-graphs CVSS 4.0HIGH 7.3
See all 32 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences