{
  "cveId": "CVE-2026-90439",
  "url": "https://patchblox.com/security/cve/CVE-2026-90439",
  "summary": "CVE-2026-90439 is fixed in nginx on 1 platform by DEBIAN-CVE-2026-90439 (version 1.30.4-7), released September 20, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "nginx: NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module",
  "description": "NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_v3_module module. When using HTTP/3 with OpenSSL versions \u003C= OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner that is beyond the attacker\u0027s control.\u00A0This may cause a heap buffer overflow in the NGINX worker process leading to a restart and/or limited data corruption.  Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system or limited data corruption. 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": "2026-09-15T15:17:27Z",
  "severity": "",
  "epss": 0.00256,
  "epssPercentile": 0.17383,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "nginx",
      "release": "Debian 14",
      "fixedVersion": "1.30.4-7",
      "fix": "DEBIAN-CVE-2026-90439",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-90439",
      "released": "2026-09-20T18:42:59Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}