home-assistant core up to 2026.6.0 Statistics Graph card statistics-chart.ts getStatisticLabel/computeStateName param.seriesName cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, was found in home-assistant core. This issue affects the function getStatisticLabel/computeStateName of the file src/components/chart/statistics-chart.ts of the component Statistics Graph card. Executing a manipulation of the argument param.seriesName can lead to cross site scripting. This vulnerability is handled as CVE-2026-91130. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in home-assistant core and classified as problematic. This vulnerability affects the function getStatisticLabel/computeStateName of the file src/components/chart/statistics-chart.ts of the component Statistics Graph card. The manipulation of the argument param.seriesName with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

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.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-91130 since 09/14/2026. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 2026.7.0 eliminates this vulnerability.

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Productinfo

Vendor

• home-assistant

Name

• core

Version

• 2025.5.0
• 2026.01
• 2026.5.3
• 2026.5.4
• 2026.6.0

Website

• Product: https://github.com/home-assistant/core/

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