What is CVE-2026-33044?

CVE-2026-33044 is a medium-severity vulnerability in Home-assistant Core, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-03-27.

How severe is CVE-2026-33044?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Home-assistant Core

CVE-2026-33044

Home Assistant is open source home automation software that puts local control and privacy first. Starting in version 2020.02 and prior to version 2026.01, an authenticated party can add a malicious name to their device entity, allowing fo…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (15.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Home-assistant Core — versions >= 2020.02, < 2026.01
Home-assistant

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-33044?: CVE-2026-33044 is a medium-severity vulnerability in Home-assistant Core, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-03-27.
How severe is CVE-2026-33044?: Medium severity. CVSS v3 base score is 5.4 out of 10.