CVE-2023-41894

Name: CVE-2023-41894
Creator: NVD / NIST
Published: 2023-10-20T00:15:16.093+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.42%

Last modified Jun 17, 2026

CVE-2023-41894 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Home assistant is an open source home automation. The assessment verified that webhooks available in the webhook component are triggerable via the `*.ui.nabu.casa` URL without authentication, even when the webhook is marked as Only accessible from the local network. EPSS estimates a 0.42% chance of exploitation in the next 30 days.

Description

Home assistant is an open source home automation. The assessment verified that webhooks available in the webhook component are triggerable via the `*.ui.nabu.casa` URL without authentication, even when the webhook is marked as Only accessible from the local network. This issue is facilitated by the SniTun proxy, which sets the source address to 127.0.0.1 on all requests sent to the public URL and forwarded to the local Home Assistant. This issue has been addressed in version 2023.9.0 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

0.42%

33.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-669

Affected Software

Vendor	Product	Versions
Home-Assistant	Home-Assistant	< 2023.9.0

References

https://github.com/home-assistant/core/security/advisories/GHSA-wx3j-3v2j-rf45Vendor Advisory
https://www.home-assistant.io/blog/2023/10/19/security-audits-of-home-assistant/Vendor Advisory
https://github.com/home-assistant/core/security/advisories/GHSA-wx3j-3v2j-rf45Vendor Advisory
https://www.home-assistant.io/blog/2023/10/19/security-audits-of-home-assistant/Vendor Advisory

Timeline

Published: Oct 20, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-41894?

How severe is CVE-2023-41894?

CVE-2023-41894 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.42% probability of exploitation in the next 30 days.

How do I fix CVE-2023-41894?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-41894?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST