{
  "id": "CVE-2023-40518",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2023-08-14T22:15:14.327",
  "lastModified": "2023-08-22T01:16:07.403",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "LiteSpeed OpenLiteSpeed before 1.7.18 does not strictly validate HTTP request headers."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:litespeedtech:openlitespeed:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "1.7.18",
              "matchCriteriaId": "167DAFC3-54C7-448A-A205-86FA8EB0EE09"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://openlitespeed.org/release-log/version-1-7-x/",
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://www.litespeedtech.com/products/litespeed-web-server/release-log",
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes"
      ]
    }
  ]
}