$ cve CVE-2023-27482 JSON

CVE-2023-27482

10.0

CRITICAL · CVSS 3.1 · EPSS 72.2% (pctl 99)

Patch early

EPSS 72.2% — above the 10% action threshold.

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.

Scoring

CVSS	10.0 (CRITICAL, v3.1)
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS	72.17% — more likely to be exploited than 99% of all CVEs
Weakness	CWE-287
On CISA KEV	no
Public exploit	none known
Published	2023-03-08
Last modified	2026-06-17

Affected (2)

Vendor	Product
home-assistant	home-assistant
home-assistant	supervisor

References

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