{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.7.18"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "f52f8d6a21df4337de99fd3be814c8e512c8cf64"
            }
          ],
          "repo": "https://github.com/litespeedtech/openlitespeed",
          "type": "GIT"
        }
      ]
    }
  ],
  "details": "LiteSpeed OpenLiteSpeed before 1.7.18 does not strictly validate HTTP request headers.",
  "id": "CVE-2023-40518",
  "modified": "2026-04-01T23:07:56.362624328Z",
  "published": "2023-08-14T22:15:14.327Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.litespeedtech.com/products/litespeed-web-server/release-log"
    },
    {
      "type": "ADVISORY",
      "url": "https://openlitespeed.org/release-log/version-1-7-x/"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}