{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "e48f15d38d2bebeec9cabcfdde81931b10a1963b"
            },
            {
              "last_affected": "a381da252fe8e873c8aff22703040426cc9b2ae0"
            }
          ],
          "repo": "https://github.com/GeneralSandman/TinyWeb",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67184.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "0.0.8"
          },
          {
            "last_affected": "0.0.8"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "TinyWeb through 0.0.8 contains a null pointer dereference vulnerability that allows unauthenticated remote attackers to crash worker processes by sending a malformed HTTP request line with an invalid version string. The HttpParser::execute() function fails to allocate the Url object when version parsing fails, leaving the url pointer NULL, and buildResponse() subsequently dereferences this NULL pointer without checking the valid_requ flag, producing a SIGSEGV that terminates the worker process and, when repeated across all workers, takes the server permanently offline until manually restarted.",
  "id": "CVE-2026-67184",
  "modified": "2026-10-08T02:31:08.527238298Z",
  "published": "2026-07-28T16:28:48.056Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67184.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-67184"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/tinyweb-null-pointer-dereference-dos-via-malformed-http-request"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/GeneralSandman/TinyWeb"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/theopaid/Unauthenticated-NULL-Pointer-Dereference-Crashes-the-Server-TinyWeb-"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "TinyWeb 0.0.8 Null Pointer Dereference DoS via Malformed HTTP Request"
}