{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "12.1.0"
              },
              {
                "last_affected": "12.1.11"
              },
              {
                "introduced": "12.0.0"
              },
              {
                "last_affected": "12.0.38"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "c8372b65bd15404de1444d68902c0455a3a69b64"
            },
            {
              "last_affected": "6c1ced3f077bc633716c54758a743b09b21328e8"
            },
            {
              "introduced": "28100e8da711e44c0722ed10bd413ae862497539"
            },
            {
              "last_affected": "bdf87d35991b6459dec358c6012412e329f110b3"
            }
          ],
          "repo": "https://github.com/jetty/jetty.project",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-7wfj-j486-mxrf"
  ],
  "database_specific": {
    "cna_assigner": "eclipse",
    "cwe_ids": [
      "CWE-178",
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18660.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "11.0.0"
          },
          {
            "last_affected": "11.0.32"
          },
          {
            "introduced": "10.0.0"
          },
          {
            "last_affected": "10.0.32"
          },
          {
            "introduced": "9.0.0"
          },
          {
            "last_affected": "9.4.64"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "In Eclipse Jetty, across various versions of `jetty-server`, and `jetty-proxy`, the host whitelist/blacklist is case-sensitive, and would allow hosts through that only differ by case.",
  "id": "CVE-2026-18660",
  "modified": "2026-10-16T02:31:03.978039789Z",
  "published": "2026-10-15T09:38:02.125Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/18xxx/CVE-2026-18660.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/jetty/jetty.project/security/advisories/GHSA-7wfj-j486-mxrf"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.eclipse.org/security/cve-assignment/-/work_items/212"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-18660"
    },
    {
      "type": "WEB",
      "url": "https://repo.maven.apache.org/maven2/"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Jetty proxy blacklist performs case-sensitive matching of case-insensitive DNS hostnames"
}