CVE-2026-128082

{
  "etk_id": "ETK-2026-3654",
  "cve_id": "CVE-2026-128082",
  "display_id": "CVE-2026-128082",
  "ghsa_id": "GHSA-6vhm-j9h7-f9gh",
  "euvd_id": "EUVD-2026-125689",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Uncontrolled recursion in AutoMapper constructor mapping",
  "summary": "AutoMapper is affected when recursive destination objects are created through constructors while processing deeply nested, attacker-influenced input. In affected mappings, configured depth limits may be bypassed, allowing stack exhaustion that terminates the application process.",
  "mitigation": "Upgrade AutoMapper to 15.1.4 or 16.3.0, as appropriate for your release line. Until then, limit input nesting before mapping; for eligible destination types, disable constructor mapping and use settable properties instead.",
  "vendor": "nuget",
  "product": "nuget:AutoMapper",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 16.0.0, < 16.3.0"
      ],
      "ecosystem": "nuget",
      "fixed_versions": [
        "16.3.0"
      ],
      "package_name": "AutoMapper",
      "purl": "pkg:nuget/AutoMapper"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 15.1.4"
      ],
      "ecosystem": "nuget",
      "fixed_versions": [
        "15.1.4"
      ],
      "package_name": "AutoMapper",
      "purl": "pkg:nuget/AutoMapper"
    }
  ],
  "cwes": [
    674
  ],
  "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": 7.0481633,
  "t0_at": "2026-11-13T18:37:30.465000+00:00",
  "signals": {
    "public_poc": {
      "at": "2026-11-05T15:34:47+00:00",
      "days": -8.126891956018518,
      "is_lower_bound": false,
      "measured_at": "2026-11-13T18:37:30.465000+00:00",
      "url": "https://github.com/LuckyPennySoftware/AutoMapper/security/advisories/GHSA-6vhm-j9h7-f9gh"
    },
    "trigger_signal": {
      "at": "2026-11-05T15:34:47+00:00",
      "days": -8.126891956018518,
      "is_lower_bound": false,
      "measured_at": "2026-11-13T18:37:30.465000+00:00",
      "url": "https://github.com/LuckyPennySoftware/AutoMapper/security/advisories/GHSA-6vhm-j9h7-f9gh"
    }
  }
}