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TI-2023-22286 Aliases CVE-2023-41894

Local-only webhooks externally accessible via SniTun in Home Assistant Core

Priority LOW 25CWE-669Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Home assistant is an open source home automation. The assessment verified that webhooks available in the webhook component are triggerable via the `*.ui.nabu.casa` URL without authentication, even when the webhook is marked as Only accessible from the local network. This issue is facilitated by the SniTun proxy, which sets the source address to 127.0.0.1 on all requests sent to the public URL and forwarded to the local Home Assistant. This issue has been addressed in version 2023.9.0 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00505 43rd percentileScored 2026-11-07
Fix Fixed core (home-assistant): 2023.9.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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-assistantcorebefore 2023.9.02023.9.0Patch availableCNA
  • core Vendorhome-assistant Affected before 2023.9.0 Fixed in 2023.9.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:home-assistant:home-assistant:*:*:*:*:*:*:*:*before 2023.9.0Vulnerablehome-assistant
  • cpe:2.3:a:home-assistant:home-assistant:*:*:*:*:*:*:*:* Versions before 2023.9.0 Vulnerable ·home-assistant

Remediation

  • Fix · CNA core (home-assistant) Fixed in 2023.9.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-41894

References

Advisory 2

  • TI-2023-12210 Improper authentication in home-assistant core CVSS 3.1CRITICAL 10.0
  • TI-2026-25491 Home Assistant has stored XSS in history-graphs CVSS 4.0HIGH 7.3
  • TI-2026-25490 Home Assistant has stored XSS in Map-card through malicious device name CVSS 4.0HIGH 7.3
  • TI-2026-39212 Home Assistant: Konnected alarm-panel switch state and zone topology disclosed to unauthenticated actors on the LAN CVSS 3.1HIGH 7.6
  • TI-2025-40423 Home Assistant Core before v2025.8.0 is vulnerable to Directory Traversal. CVSS 3.1MEDIUM 4.0
  • TI-2023-22289 Lack of XFO header allows clickjacking in Home Assistant Core CVSS 3.1CRITICAL 9.6
See all 15 →

Sources

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