{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.13.6.1"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "d2618c31355a2f7e7ac88ab845a72f61c3505f8b"
            }
          ],
          "repo": "https://github.com/openresty/openresty",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "In OpenResty through 1.13.6.1, URI parameters are obtained using the ngx.req.get_uri_args and ngx.req.get_post_args functions that ignore parameters beyond the hundredth one, which might allow remote attackers to bypass intended access restrictions or interfere with certain Web Application Firewall (ngx_lua_waf or X-WAF) products. NOTE: the vendor has reported that 100 parameters is an intentional default setting, but is adjustable within the API. The vendor's position is that a security-relevant misuse of the API by a WAF product is a vulnerability in the WAF product, not a vulnerability in OpenResty",
  "id": "CVE-2018-9230",
  "modified": "2026-03-13T21:54:14.105740740Z",
  "published": "2018-04-02T18:29:00.233Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://openresty.org/en/changelog-1013006.html"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/Bypass007/vuln/blob/master/OpenResty/Uri%20parameter%20overflow%20in%20Openresty.md"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}