Incorrect request error handling triggers server crash in Vapor

{
  "id": "faf94fa5ef2b268a5b44c4a5e3e2eb024fab8e2dd6fb45c26e6bd35aea53bbbb",
  "url": "https://osv.dev/vulnerability/CVE-2023-44386",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Incorrect request error handling triggers server crash in Vapor",
    "summary": "Vapor is an HTTP web framework for Swift. There is a denial of service vulnerability impacting all users of affected versions of Vapor. The HTTP1 error handler closed connections when HTTP parse errors occur instead of passing them on. The issue is fixed as of Vapor release 4.84.2.",
    "evidence": "osv:CVE-2023-44386",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2023-44386",
      "aliases": [
        "CVE-2023-44386",
        "GHSA-3mwq-h3g6-ffhm"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/vapor/vapor",
              "type": "GIT",
              "events": [
                {
                  "introduced": "1f2b44b1739ff5cdec6c6dfec40020f5d4b2a813"
                },
                {
                  "fixed": "090464a654b03148b139a81f8f5ac63b0856f6f3"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "4.83.2"
                      },
                      {
                        "fixed": "4.84.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "090464a654b03148b139a81f8f5ac63b0856f6f3"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "090464a654b03148b139a81f8f5ac63b0856f6f3"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "4.84.2"
                  },
                  {
                    "cpe": "cpe:2.3:a:vapor:vapor:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.83.2"
                      },
                      {
                        "fixed": "4.84.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.84.1",
            "4.84.0",
            "4.83.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-44386.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:26.063538319Z",
      "provider": "osv",
      "references": [
        "https://github.com/vapor/vapor/releases/tag/4.84.2",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/44xxx/CVE-2023-44386.json",
        "https://github.com/vapor/vapor/security/advisories/GHSA-3mwq-h3g6-ffhm",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-44386",
        "https://github.com/vapor/vapor/commit/090464a654b03148b139a81f8f5ac63b0856f6f3"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-231",
          "CWE-617",
          "CWE-696"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/44xxx/CVE-2023-44386.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-44386",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492370,
  "published_at": "2023-10-05T17:41:38.379+00:00"
}