{
  "schemaVersion": 1,
  "incident": {
    "id": "cve-2026-102989",
    "url": "https://cveboard.org/i/cve-2026-102989",
    "urlPt": "https://cveboard.org/pt/i/cve-2026-102989",
    "json": "https://cveboard.org/i/cve-2026-102989.json",
    "kind": "vuln",
    "live": true,
    "knownExploited": false,
    "severity": "critical",
    "title": "TanStack Router: Unauthenticated reflected XSS in TanStack Start server-function responses",
    "summary": "An unauthenticated attacker can craft a URL to a server function in an affected TanStack Start app. If someone opens the link, the app can return attacker-controlled HTML from its own origin and run the attacker's JavaScript there. The script can access same-origin data available to that visitor and make requests with their authority.",
    "titlePt": "TanStack Router: XSS refletido não autenticado nas respostas de função de servidor do TanStack Start",
    "summaryPt": "Um atacante não autenticado pode criar uma URL para uma função de servidor em um aplicativo TanStack Start afetado. Se alguém abrir o link, o aplicativo pode retornar HTML controlado pelo atacante de sua própria origem e executar o JavaScript do atacante. O script pode acessar dados de mesma origem disponíveis para aquele visitante e fazer solicitações com sua autoridade.",
    "cves": [
      "CVE-2026-102989"
    ],
    "ghsa": "GHSA-qx66-fv34-fjm8",
    "cvss": {
      "score": 9.3,
      "version": "3.1"
    },
    "epss": {
      "percentage": 0.00516,
      "percentile": 0.42559,
      "asOf": "2026-10-23"
    },
    "packages": [
      {
        "ecosystem": "npm",
        "name": "@tanstack/start-server-core",
        "vulnerable": ">= 1.143.12, < 1.169.39",
        "fixed": "1.169.39",
        "advisory": "GHSA-qx66-fv34-fjm8"
      },
      {
        "ecosystem": "npm",
        "name": "@tanstack/react-start",
        "vulnerable": ">= 1.143.12, < 1.168.60",
        "fixed": "1.168.60",
        "advisory": "GHSA-qx66-fv34-fjm8"
      },
      {
        "ecosystem": "npm",
        "name": "@tanstack/solid-start",
        "vulnerable": ">= 1.143.12, < 1.168.57",
        "fixed": "1.168.57",
        "advisory": "GHSA-qx66-fv34-fjm8"
      },
      {
        "ecosystem": "npm",
        "name": "@tanstack/vue-start",
        "vulnerable": ">= 1.143.12, < 1.168.56",
        "fixed": "1.168.56",
        "advisory": "GHSA-qx66-fv34-fjm8"
      }
    ],
    "vendor": null,
    "product": null,
    "kev": null,
    "breach": null,
    "retracted": false,
    "sources": [
      {
        "label": "GitHub Advisory Database",
        "url": "https://github.com/advisories/GHSA-qx66-fv34-fjm8"
      }
    ],
    "publishedAt": "2026-10-15T20:22:20.000Z",
    "updatedAt": "2026-10-15T20:22:20.000Z"
  },
  "live": true,
  "events": [
    {
      "id": "ghsa:GHSA-qx66-fv34-fjm8:ghsa_published:2026-10-15T20:22:20.000Z",
      "incidentId": "cve-2026-102989",
      "type": "ghsa_published",
      "at": "2026-10-15T20:22:20.000Z",
      "detail": {
        "ghsa": "GHSA-qx66-fv34-fjm8",
        "severity": "critical",
        "fixed": "1.169.39, 1.168.60, 1.168.57, 1.168.56"
      }
    }
  ]
}