{
 "id": "AIR-2026-0666",
 "slug": "cve-2026-45396-open-webui-mass-assignment-user-id-spoofing",
 "title": "CVE-2026-45396: Open WebUI Mass Assignment User ID Spoofing",
 "summary": "Open WebUI evaluation feedback endpoints permit mass assignment, allowing attackers to inject user IDs and manipulate feedback records. This corrupts model evaluation leaderboards and Elo rating data.",
 "type": "attack_on_ai",
 "categories": [
  "infra_vuln"
 ],
 "severity": 2,
 "targets": [
  "framework_or_tooling"
 ],
 "products": [
  "Open WebUI"
 ],
 "incident_date": "2026-05-14",
 "incident_date_precision": "day",
 "first_reported": "2026-05-14",
 "sources": [
  {
   "url": "https://github.com/advisories/GHSA-rjmp-vjf2-qf4g",
   "publisher": "GitHub Advisory Database",
   "title": "CVE-2026-45396: Open WebUI: Mass Assignment via FeedbackForm extra=allow Allows Feedback User ID Spoofing and Evaluation Data Manipulation",
   "published_at": "2026-05-14"
  },
  {
   "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45396",
   "publisher": "NVD",
   "title": "CVE-2026-45396: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline.",
   "published_at": "2026-05-15"
  }
 ],
 "source_count": 2,
 "confidence": 0.95,
 "status": "published",
 "origin": "seed_ghsa",
 "tags": [
  "CVE-2026-45396",
  "mass-assignment",
  "open-webui"
 ],
 "created_at": "2026-10-18T07:00:14.101Z",
 "updated_at": "2026-10-18T10:04:21.885Z"
}