XSS in Home-Assistant Core
CVE-2026-33045
Home Assistant is open source home automation software that puts local control and privacy first. Starting in version 2025.02 and prior to version 2026.01 the "remaining charge time"-sensor for mobile phones (imported/included from Android Auto it appears) is vulnerable cross-site scripting, similar to CVE-2025-62172. Version 2026.01 fixes the issue.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.002 (14.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Home-Assistant Core — versions >= 2025.02, < 2026.01
- Home-Assistant
Weakness classification (CWE)
References
- github.com/home-assistant/core/security/advisories/GHSA-46j8-vpx8-6p72 (Exploit, Vendor Advisory)
- github.com/home-assistant/core/security/advisories/GHSA-mq77-rv97-285m (Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-33045?
- CVE-2026-33045 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-2026-33045?
- Medium severity. CVSS v3 base score is 5.4 out of 10.