CVE-2026-91130 Home Assistant: XSS in Statistics Graph Card
An authenticated user or malicious integration can inject scripts into Home Assistant statistics graphs, leading to code execution when viewed.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-91130?
CVE-2026-91130 is a critical cross-site scripting vulnerability in home-assistant core, published on 22 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Home Assistant is open source home automation software focused on local control and privacy. Prior to 2026.7.0, the Statistics Graph card in src/components/chart/statistics-chart.ts passed entity names through getStatisticLabel and computeStateName and interpolated param.seriesName into ECharts tooltip HTML without escaping. An authenticated user or an integration that supplies a malicious default entity name could cause script-related HTML to execute when a viewer hovered over a data point. Mean, State, Sum, and Change fields in the default Line chart configuration were affected, while Bar charts were not. This issue is fixed in version 2026.7.0.
Weakness: CWE-80
Which versions are affected by CVE-2026-91130?
3 open source packages ship an affected version, including homeassistant.
| Package | Affected | Fixed in |
|---|---|---|
homeassistant PyPI | All versions | 2026.7.0 |
homeassistant PyPI | All versions | 2026.7.0 |
homeassistant PyPI | All versions | 2026.7.0 |
How do I fix CVE-2026-91130?
Upgrade homeassistant to 2026.7.0 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-91130 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-91130 exists.
Sources
Also known as GHSA-wx4m-69m9-gx3m, PYSEC-2026-4052.