An information leak in Nabu Casa Home Assistant Operating System and Home Assistant…
Priority LOW 38CWE-203Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-203.
Summary
An information leak in Nabu Casa Home Assistant Operating System and Home Assistant Supervised 2022.03 allows a DNS operator to gain knowledge about internal network resources via the hardcoded DNS resolver configuration.
Why it matters now
EPSS 0.02897 87th percentileScored 2026-11-07
Public exploit Yes 11 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:home-assistant:home-assistant:2022.03:*:*:*:*:*:*:* | 2022.03 | Vulnerable | home-assistant |
- cpe:2.3:a:home-assistant:home-assistant:2022.03:*:*:*:*:*:*:* Versions 2022.03 Vulnerable ·home-assistant
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-36517
- 2026-10-03 Alias added: GHSA-wj7x-544h-j3j3
References
Exploit 11
- https://github.com/home-assistant/plugin-dns/issues/70
- https://github.com/home-assistant/plugin-dns/issues/64
- https://github.com/home-assistant/plugin-dns/pull/56
- https://github.com/home-assistant/plugin-dns/pull/55
- https://github.com/home-assistant/plugin-dns/issues/54
- https://github.com/home-assistant/plugin-dns/issues/53
- https://github.com/home-assistant/plugin-dns/issues/51
- https://github.com/home-assistant/plugin-dns/issues/50
- https://github.com/home-assistant/plugin-dns/issues/20
- https://github.com/home-assistant/plugin-dns/issues/6
- https://community.home-assistant.io/t/ha-os-dns-setting-configuration-not-respected/356572
Patch 2
More Home-assistant vulnerabilities
- 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
Sources
- CVE-2020-36517 · CVE Program
- CVE-2020-36517 · NVD
- FIRST EPSS
- GHSA-wj7x-544h-j3j3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences