CVE-2023-27482: homeassistant is an open source home automation tool

Q: How do I fix CVE-2023-27482?

home-assistant: upgrade to 2023.3.0; supervisor: upgrade to 2023.03.1. Exact commands for each OS are on this page.

Q: Is CVE-2023-27482 being exploited?

CVE-2023-27482 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-27482 affect?

CVE-2023-27482 affects home-assistant, supervisor. Severity is critical (CVSS 10.0). 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 ty

Q: How urgent is CVE-2023-27482?

Priority 65/100. Critical severity; EPSS top 1%: very likely to be exploited; Remotely exploitable, no login, no user action

This week

CRITICAL 10.0REMOTEUPGRADEUPGRADE

CVE-2023-27482 is a critical-severity flaw (CVSS 10.0) affecting home-assistant, supervisor. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 b

Why this priority

Critical severity
EPSS top 1%: very likely to be exploited
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	72.2% (top 1%)
CISA exploited list	No
Weakness	CWE-287
Published	2023-03-08
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: home-assistant

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-03-08 18:15 UTCPublished CVE record published
2026-06-17 05:45 UTCUpdated Record last modified

home-assistant home-assistant UPGRADE

Affected: < 2023.3.0

Fixed in: 2023.3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy home-assistant || rpm -q home-assistant || home-assistant --version

2. UPGRADE to 2023.3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade home-assistant

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade home-assistant

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

home-assistant supervisor UPGRADE

Affected: < 2023.03.1

Fixed in: 2023.03.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy supervisor || rpm -q supervisor || supervisor --version

2. UPGRADE to 2023.03.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade supervisor

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade supervisor

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: Home Assistant Supervisor - Authentication Bypass

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-27482?

home-assistant: upgrade to 2023.3.0; supervisor: upgrade to 2023.03.1. Exact commands for each OS are on this page.

Is CVE-2023-27482 being exploited?

CVE-2023-27482 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-27482 affect?

CVE-2023-27482 affects home-assistant, supervisor. Severity is critical (CVSS 10.0). 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 ty

How urgent is CVE-2023-27482?

Priority 65/100. Critical severity; EPSS top 1%: very likely to be exploited; Remotely exploitable, no login, no user action

Software pages

Python vulnerabilities · Docker vulnerabilities · Home Assistant vulnerabilities

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References

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