CVE-2026-77299

{
  "etk_id": "ETK-2026-3691",
  "cve_id": "CVE-2026-77299",
  "display_id": "CVE-2026-77299",
  "ghsa_id": "GHSA-wq9v-j77v-qr26",
  "euvd_id": "EUVD-2026-117884",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Unbounded memory consumption in dlclark regexp2",
  "summary": "Regexp2 releases before 2.3.0 can be forced to allocate excessive memory when processing a specially constructed regular expression. An attacker may terminate the host process if the application compiles and matches patterns under attacker control.",
  "mitigation": "Upgrade regexp2 to version 2.3.0 or later. Until upgraded, do not accept regular-expression patterns from untrusted sources.",
  "vendor": "dlclark",
  "product": "regexp2",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 2.3.0"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "2.3.0"
      ],
      "package_name": "github.com/dlclark/regexp2",
      "purl": "pkg:golang/github.com/dlclark/regexp2"
    }
  ],
  "cwes": [
    400
  ],
  "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": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 7.12263685,
  "t0_at": "2026-11-06T01:28:58.685000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-11-06T01:28:58.685000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-06T01:28:58.685000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-77299"
    }
  }
}