CVE-2026-63198

{
  "etk_id": "ETK-2026-4014",
  "cve_id": "CVE-2026-63198",
  "display_id": "CVE-2026-63198",
  "ghsa_id": "GHSA-8cfq-jgf7-8m27",
  "euvd_id": "EUVD-2026-116132",
  "status": "published",
  "anchor_state": "anchored",
  "title": "OAuth scope authorization bypass in traQ",
  "summary": "traQ OAuth2 silent authorization can grant a client more registered scopes than were covered by the user's prior consent. An attacker must control an OAuth client able to receive authorization codes and target a user who has already approved only part of that client's scope set.",
  "mitigation": "Update github.com/traPtitech/traQ to 1.0.0-rc.2.0.20260629134940-5510fe8aa9bb. Until updated, reject silent authorization requests without a scope, restrict or disable untrusted clients, and revoke potentially affected tokens.",
  "vendor": "go",
  "product": "go:github.com/traPtitech/traQ",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 1.0.0-rc.2.0.20260629134940-5510fe8aa9bb"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "1.0.0-rc.2.0.20260629134940-5510fe8aa9bb"
      ],
      "package_name": "github.com/traPtitech/traQ",
      "purl": "pkg:golang/github.com/traPtitech/traQ"
    }
  ],
  "cwes": null,
  "cvss_score": 7.3,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N",
  "epss_score": 0.0026,
  "epss_percentile": 0.1725,
  "epss_asof": "2026-11-09",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 23.533594566666668,
  "t0_at": "2026-11-03T18:38:35.870000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-11-03T18:38:35.870000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-03T18:38:35.870000+00:00",
      "url": "https://github.com/advisories/GHSA-8cfq-jgf7-8m27"
    }
  }
}