{
 "id": "AIR-2026-0927",
 "slug": "cve-2026-87017-open-webui-exposes-inaccessible-knowledge-bas",
 "title": "CVE-2026-87017: Open WebUI exposes inaccessible knowledge bases via vector search",
 "summary": "A vulnerability in Open WebUI causes the built-in knowledge search tool to bypass access controls and return matches from unassigned knowledge bases on vector backends. No active exploitation has been reported.",
 "type": "attack_on_ai",
 "categories": [
  "infra_vuln",
  "data_leak"
 ],
 "severity": 2,
 "targets": [
  "framework_or_tooling"
 ],
 "products": [
  "Open WebUI"
 ],
 "incident_date": "2026-09-10",
 "incident_date_precision": "day",
 "first_reported": "2026-09-09",
 "sources": [
  {
   "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-87017",
   "publisher": "NVD",
   "title": "CVE-2026-87017: Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform.",
   "published_at": "2026-09-09"
  },
  {
   "url": "https://github.com/advisories/GHSA-pcvc-8vrv-8q6w",
   "publisher": "GitHub Advisory Database",
   "title": "CVE-2026-87017: Open WebUI: Inaccessible knowledge bases are exposed through the built-in knowledge tool on most vector backends",
   "published_at": "2026-09-10"
  }
 ],
 "source_count": 2,
 "confidence": 0.95,
 "status": "published",
 "origin": "seed_ghsa",
 "tags": [
  "CVE-2026-87017",
  "vector-database",
  "access-control"
 ],
 "created_at": "2026-10-18T07:00:14.101Z",
 "updated_at": "2026-10-18T10:04:21.885Z"
}