PT-2023-21158 · Home Assistant · Home Assistant Supervised+1

Joseph Surin · Published 2023-03-08 · Updated 2026-03-29 · CVE-2023-27482

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Home Assistant Supervisor versions 2023.01.1 and earlier Home Assistant Core versions prior to 2023.3.0

Description A remotely exploitable issue has been discovered in Home Assistant, allowing unauthorized access to the Supervisor API by bypassing authentication. This affects all Home Assistant installations using the Supervisor 2023.01.1 or older, excluding installations like Home Assistant Container or Home Assistant Core in a Python environment. The issue has been mitigated in Supervisor version 2023.03.1 and Home Assistant Core 2023.3.0.

Recommendations For Home Assistant Supervisor versions 2023.01.1 and earlier, upgrade to at least version 2023.03.1. For Home Assistant Core versions prior to 2023.3.0, upgrade to at least version 2023.3.0. As a temporary workaround, consider not exposing your Home Assistant instance to the internet until the issue is resolved.

Exploit

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2023-27482

GHSA-2J8F-H4MR-QR25

Affected Products

Home Assistant Core

Home Assistant Supervised

References · 15

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/27xxx/CVE-2023-27482.json · Exploit
• https://github.com/home-assistant/core/security/advisories/GHSA-2j8f-h4mr-qr25 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-27482 · Security Note
• https://home-assistant.io/blog/2023/03/08/supervisor-security-disclosure · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-ALPINE-319-CVE-2023-27482 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-27482 · Vendor Advisory
• https://github.com/elttam/publications/blob/master/writeups/home-assistant/supervisor-authentication-bypass-advisory.md · Note
• https://t.me/cvenotify/50698 · Telegram Post
• https://t.me/cvenotify/46216 · Telegram Post
• https://t.me/cibsecurity/59682 · Telegram Post
• https://t.me/cvenotify/45813 · Telegram Post
• https://t.me/cvenotify/45806 · Telegram Post
• https://elttam.com/blog/pwnassistant · Note
• https://t.me/opennews/11215 · Telegram Post
• https://t.me/pentestingnews/33872 · Telegram Post