CVE-2026-103235

{
  "etk_id": "ETK-2026-94",
  "cve_id": "CVE-2026-103235",
  "display_id": "CVE-2026-103235",
  "ghsa_id": "GHSA-j2mf-q9c3-gwxw",
  "euvd_id": "EUVD-2026-89728",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Mass assignment in MISP event delegation",
  "summary": "MISP versions before 2.5.48 mishandle user-controlled fields when processing event-delegation requests. An authenticated user granted delegation permission can alter delegation records to access events from other organisations and, if a target accepts the delegation, affect event ownership; delegation must be enabled.",
  "mitigation": "Upgrade MISP to version 2.5.48 or later. Until upgrades are complete, disable the MISP.delegation setting and restrict delegation permission to only essential accounts.",
  "vendor": "MISP",
  "product": "MISP",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, < 2.5.48"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "2.5.48"
      ],
      "package_name": "MISP",
      "purl": null
    }
  ],
  "cwes": [
    915
  ],
  "cvss_score": 8.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N",
  "epss_score": 0.0036,
  "epss_percentile": 0.2866,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 56.106829233333336,
  "t0_at": "2026-09-30T09:09:36.761000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-09-30T09:09:36.761000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-09-30T09:09:36.761000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-103235"
    }
  }
}