---
title: "CVE-2023-27482: Improper Authentication | CubePath"
description: "homeassistant is an open source home automation tool. A remotely exploitable vulnerability bypassing authentication for accessing the Supervisor API…"
language: en
source: https://cubepath.com/security/cve/CVE-2023-27482
---

# CVE-2023-27482: Improper Authentication | CubePath

## Description

homeassistant is an open source home automation tool. A remotely exploitable vulnerability bypassing authentication for accessing the Supervisor API through Home Assistant has been discovered. This impacts all Home Assistant installation types that use the Supervisor 2023.01.1 or older. Installation types, like Home Assistant Container (for example Docker), or Home Assistant Core manually in a Python environment, are not affected. The issue has been mitigated and closed in Supervisor version 2023.03.1, which has been rolled out to all affected installations via the auto-update feature of the Supervisor. This rollout has been completed at the time of publication of this advisory. Home Assistant Core 2023.3.0 included mitigation for this vulnerability. Upgrading to at least that version is thus advised. In case one is not able to upgrade the Home Assistant Supervisor or the Home Assistant Core application at this time, it is advised to not expose your Home Assistant instance to the internet.

Official description from the CVE record, published by GitHub\_M. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2023-27482)

## Key data

### CVSS 3.1 Critical 10.0

Score published by GitHub\_M in the CVE record.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

| Metric                 | Value   | What it means                                                                       |
| ---------------------- | ------- | ----------------------------------------------------------------------------------- |
| Attack vector          | Network | The vulnerable component can be reached over a network, possibly from the Internet. |
| Attack complexity      | Low     | No special conditions are needed. The attack can be repeated at will.               |
| Privileges required    | None    | No account or privileges are needed.                                                |
| User interaction       | None    | No action from any user is needed.                                                  |
| Scope                  | Changed | The impact can reach other components beyond the vulnerable one.                    |
| Confidentiality impact | High    | Serious or total effect on the secrecy of data.                                     |
| Integrity impact       | High    | Serious or total effect on the trustworthiness of data.                             |
| Availability impact    | High    | Serious or total effect on availability.                                            |

CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) .

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.72167 (72.2% probability)

Percentile

99.4%

Scores of

Nov 10, 2026

Model

v2026.06.15

### CISA assessment as of Feb 25, 2025

Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.

Automatable

yes

Technical impact

total

### Weakness (CWE)

CWE catalog version 5.0.

CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license.

- [CWE-287](https://cwe.mitre.org/data/definitions/287.html) Improper Authentication

## Affected products

Products listed in the CVE record, as the CNA published them.

- home-assistant core

  - affected: < 2023.3.2
- home-assistant supervisor

  - affected: < 2023.03.3

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [github.com/home-assistant/core/security/advisories/GHSA-2j8…](https://github.com/home-assistant/core/security/advisories/GHSA-2j8f-h4mr-qr25)
- [home-assistant.io/blog/2023/03/08/supervisor-security-discl…](https://www.home-assistant.io/blog/2023/03/08/supervisor-security-disclosure/)
- [github.com/elttam/publications/blob/master/writeups/home-as…](https://github.com/elttam/publications/blob/master/writeups/home-assistant/supervisor-authentication-bypass-advisory.md)
- [elttam.com/blog/pwnassistant](https://www.elttam.com/blog/pwnassistant/)

## Timeline

1. ID reserved Mar 1, 2023
2. Record published Mar 8, 2023
3. Record last updated Feb 25, 2025

## Look up another CVE

## About CubePath

CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection.

[Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection)

Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 20:01 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)