CVE-2026-123487

{
  "etk_id": "ETK-2026-3730",
  "cve_id": "CVE-2026-123487",
  "display_id": "CVE-2026-123487",
  "ghsa_id": "GHSA-r7pw-r949-xvmf",
  "euvd_id": "EUVD-2026-118287",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Quadratic regex denial of service in Parse Server",
  "summary": "Parse Server releases before 8.6.115, and 9.x releases before 9.10.7-alpha.1, are affected by inefficient email-address validation. An attacker can cause event-loop starvation and disrupt service through registration or email-update requests; registration requires the application ID, while email updates require an account.",
  "mitigation": "Upgrade Parse Server to 8.6.115 or later, or to 9.10.7-alpha.1 or later for the 9.x line. Restrict access to registration and email-update endpoints where feasible until upgrades are complete.",
  "vendor": "parse-community",
  "product": "parse-server",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 9.0.0, < 9.10.7-alpha.1"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "9.10.7-alpha.1"
      ],
      "package_name": "parse-server",
      "purl": null
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, < 8.6.115"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "8.6.115"
      ],
      "package_name": "parse-server",
      "purl": null
    }
  ],
  "cwes": [
    1333
  ],
  "cvss_score": 8.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 10.971838533333333,
  "t0_at": "2026-11-06T15:00:49.384000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-11-06T15:00:49.384000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-06T15:00:49.384000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-123487"
    }
  }
}