Security advisory

{
  "id": "ad4c26fb31d56dded38458c89bef4e6726e4401cee1d22780a9ed42aa6086520",
  "url": "https://osv.dev/vulnerability/CVE-2022-28229",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2022-28229",
    "summary": "The hash functionality in userver before 42059b6319661583b3080cab9b595d4f8ac48128 allows attackers to cause a denial of service via crafted HTTP request, involving collisions.",
    "evidence": "osv:CVE-2022-28229",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2022-28229",
      "aliases": [
        "CVE-2022-28229"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/userver-framework/userver",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "42059b6319661583b3080cab9b595d4f8ac48128"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-28229.json"
          }
        }
      ],
      "modified": "2026-10-08T02:48:23.879314493Z",
      "provider": "osv",
      "references": [
        "https://userver.tech/df/d3a/md_en_userver_security_changelog.html"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:userver:userver:*:*:*:*:*:*:*:*"
            ],
            "source": "CPE_RANGE",
            "vendor_product": "userver:userver",
            "extracted_events": [
              {
                "fixed": "2022-11-18"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-28229",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 98283,
  "published_at": "2022-12-23T22:15:08.71+00:00"
}