{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:fastify:fastify-static:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "4.2.4"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "d97b2cf6a0353e784ad2674aaecd6508ac74130d"
            }
          ],
          "repo": "https://github.com/fastify/fastify-static",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {},
  "details": "A redirect vulnerability in the fastify-static module version \u003c 4.2.4 allows remote attackers to redirect users to arbitrary websites via a double slash // followed by a domain: http://localhost:3000//google.com/%2e%2e.The issue shows up on all the fastify-static applications that set redirect: true option. By default, it is false.",
  "id": "CVE-2021-22963",
  "modified": "2026-07-08T05:37:00.685182436Z",
  "published": "2021-10-14T15:15:08.877Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://hackerone.com/reports/1354255"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}