{
  "cveId": "CVE-2026-18329",
  "url": "https://patchblox.com/security/cve/CVE-2026-18329",
  "summary": "CVE-2026-18329 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2026-18329, released September 10, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "NGINX ngx_http_js_module vulnerability",
  "description": "Description  NGINX JavaScript (njs)\u00A0and QuickJS (qjs) engines\u00A0have a vulnerability when a js_access handler performs asynchronous request body processing and an exception is thrown during asynchronous access-control evaluation before an explicit access denial is returned. An unauthenticated attacker can exploit this vulnerability by sending a crafted HTTP request that triggers an error condition in the access validation logic. This may cause the js_access phase to fail open, allowing the request to proceed instead of being denied, resulting in an authentication or authorization bypass and unauthorized access to protected resources.  Impact  This vulnerability may allow remote attackers to bypass js_access controls. There is no control plane exposure; this is a data plane issue only.     Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.",
  "published": "2026-09-02T16:17:14Z",
  "severity": "Moderate",
  "cvss": 8.2,
  "cwe": "Not Failing Securely (\u0027Failing Open\u0027)",
  "epss": 0.00645,
  "epssPercentile": 0.51173,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-18329",
  "fixes": [
    {
      "platform": "linux",
      "product": "libnginx-mod-js",
      "release": "Debian 14",
      "fixedVersion": "1.0.1-1",
      "fix": "DEBIAN-CVE-2026-18329",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-18329",
      "released": "2026-09-10T12:12:19Z"
    },
    {
      "platform": "linux",
      "product": "nginx-mod-njs",
      "release": "amzn 2023",
      "fixedVersion": "1.0.1-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3095",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3095",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nginx-mod-njs-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1.0.1-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3095",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3095",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "nginx-mod-njs-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "1.0.1-1.amzn2023.0.1",
      "fix": "ALAS2023-2026-3095",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3095",
      "released": "2026-09-28T09:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}