by Kastro
Paper/Archive/CVE-2026-91130

CVE-2026-91130

home-assistant core — Home Assistant: XSS in Statistics Graph Card

EPSS 0.5%public exploitCVSS 9.3
critical.is priorityof 100
46
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 41.7.417 × 208.3Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
core< 2026.7.0–CNA

Scores by source

GitHub_M (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

exploitgithub.com/home-assistant/core/security/advisories/GHSA-wx4m-69m9-gx3mrefgithub.com/home-assistant/frontend/pull/52235refgithub.com/home-assistant/frontend/commit/b8c201b6d34414d30c622797366570185c219614refgithub.com/home-assistant/core/releases/tag/2026.7.0