CVE-2026-107349

{
  "etk_id": "ETK-2026-1872",
  "cve_id": "CVE-2026-107349",
  "display_id": "CVE-2026-107349",
  "ghsa_id": "GHSA-h8cj-p2h5-hm79",
  "euvd_id": "EUVD-2026-101499",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Unauthenticated infinite-loop denial of service in PgBouncer",
  "summary": "PgBouncer versions 1.20.0 through 1.26.0 can enter a CPU-consuming loop while processing a client startup request, leaving the single PgBouncer process unable to serve clients. An attacker only needs network access to a PgBouncer listener that accepts unauthenticated connections.",
  "mitigation": "Upgrade PgBouncer to version 1.26.1 or later. Until upgrading, restrict network access to PgBouncer listeners to trusted clients.",
  "vendor": null,
  "product": "PgBouncer",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 1.20.0, < 1.26.1"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "1.26.1"
      ],
      "package_name": "PgBouncer",
      "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": 0.0042,
  "epss_percentile": 0.3513,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 50.46667535,
  "t0_at": "2026-10-14T17:34:33.785000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-14T17:34:33.785000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-14T17:34:33.785000+00:00",
      "url": "https://github.com/advisories/GHSA-h8cj-p2h5-hm79"
    }
  }
}