# Home Assistant: XSS in Statistics Graph Card Advisory record · `GHSA-wx4m-69m9-gx3m` - **Identifiers:** `GHSA-wx4m-69m9-gx3m` · `CVE-2026-91130` · `PYSEC-2026-4052` - **State:** Confirmed - **Severity:** CVSS 9.3 Critical - **Critical:** Yes: CVSS 9+ - **Weakness (CWE):** [CWE-80](https://cwe.mitre.org/data/definitions/80.html) - **Tags:** [Cross-site scripting (XSS)](https://agentprime.io/advisories/tag/xss.md) - **Published:** 22 Sept 2026 - **Updated:** 1 Oct 2026 - **Reviewed by a person:** No Published by the GitHub Advisory Database at 22 Sept 2026, 20:40 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. ## Critical Critical, because: - CVSS score 9.3: 9.0 or more. How we decide what’s critical: ## Affected packages - `homeassistant` (PyPI): affected `<2026.7.0`; fixed in `2026.7.0` ## Machine-written summary Summary written by Claude Haiku from the source advisory. Not reviewed by a person. > Home Assistant versions before 2026.7.0 are vulnerable to cross-site scripting in the Statistics Graph card. An authenticated user can give an entity a crafted name, or a name can come from an integration's provider, and the payload runs in the browser of anyone who views that entity on a Line-type Statistics Graph card and hovers over a data point. Upgrade to Home Assistant 2026.7.0 or later. No other workaround is given. Written 1 Nov 2026. ## Not analysed yet We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check. ## Severity and exploitation - 9.3 Critical, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H`, from CNA (GitHub_M) - **CISA KEV:** Not listed. - **EPSS:** 0.0048, the 42nd percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days. ## Timeline - 31 Oct 2026, 14:09 UTC: First seen by agentprime - 31 Oct 2026, 14:09 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-wx4m-69m9-gx3m) ## Sources - [GitHub Advisory Database: GHSA-wx4m-69m9-gx3m](https://github.com/advisories/GHSA-wx4m-69m9-gx3m) - [OSV: GHSA-wx4m-69m9-gx3m](https://osv.dev/vulnerability/GHSA-wx4m-69m9-gx3m) - - - - - Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code. ## Check whether this affects you A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet. - With the agentprime MCP server (), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: - In a browser: reads your lockfile in the browser, never uploading it. - Whether it touches your code, with file and line: the Claude Code plugin, - As JSON: , or `POST https://api.agentprime.io/v1/match` with your packages () --- The web page: . Everything for agents: .