CVE-2026-97206

{
  "etk_id": "ETK-2026-2305",
  "cve_id": "CVE-2026-97206",
  "display_id": "CVE-2026-97206",
  "ghsa_id": "GHSA-jc7q-6h55-rr57",
  "euvd_id": "EUVD-2026-107154",
  "status": "in_pipeline",
  "anchor_state": "anchored",
  "title": "Use-after-free in Unbound DNS-over-QUIC handling",
  "summary": "NLnet Labs Unbound versions 1.22.0 through 1.26.1 are affected in multi-threaded deployments that provide DNS-over-QUIC. A remote DoQ client may cause the resolver to crash by triggering a connection path change while a response remains pending.",
  "mitigation": "Upgrade Unbound to 1.26.2 or later.",
  "vendor": "NLnet Labs",
  "product": "Unbound",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 1.22.0, < 1.26.2"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "1.26.2"
      ],
      "package_name": "Unbound",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": 7.5,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": null,
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": null,
  "t0_at": "2026-10-21T08:57:41.106000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-21T08:57:41.106000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-21T08:57:41.106000+00:00",
      "url": "https://github.com/advisories/GHSA-jc7q-6h55-rr57"
    }
  }
}