{
 "id": "AIR-2026-0736",
 "slug": "cve-2026-41523-vllm-security-check-bypass-via-assert-stateme",
 "title": "CVE-2026-41523: vLLM Security Check Bypass via assert Statement",
 "summary": "An assert-based validation flaw in vLLM allowed unauthenticated attackers to achieve arbitrary code execution by publishing a malicious model when running in Python optimized mode. No active exploitation has been reported.",
 "type": "attack_on_ai",
 "categories": [
  "infra_vuln",
  "supply_chain"
 ],
 "severity": 2,
 "targets": [
  "framework_or_tooling",
  "open_weight_model"
 ],
 "products": [
  "vLLM"
 ],
 "incident_date": "2026-06-16",
 "incident_date_precision": "day",
 "first_reported": "2026-06-16",
 "sources": [
  {
   "url": "https://github.com/advisories/GHSA-q8gq-377p-jq3r",
   "publisher": "GitHub Advisory Database",
   "title": "CVE-2026-41523: vLLM: Security Check Bypass via assert Statement in Activation Function Loading Allows Arbitrary Code Execution",
   "published_at": "2026-06-16"
  },
  {
   "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41523",
   "publisher": "NVD",
   "title": "CVE-2026-41523: vLLM is an inference and serving engine for large language models (LLMs).",
   "published_at": "2026-06-22"
  }
 ],
 "source_count": 2,
 "confidence": 0.95,
 "status": "published",
 "origin": "seed_ghsa",
 "tags": [
  "CVE-2026-41523",
  "rce",
  "assert-bypass"
 ],
 "created_at": "2026-10-18T07:00:14.101Z",
 "updated_at": "2026-10-18T10:04:21.885Z"
}