{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "22.0.4"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4145da68112f61660c8e55ed61fae1bb07d0e3d8"
            }
          ],
          "repo": "https://github.com/pupnp/pupnp",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-46ph-jff5-5h77"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-400"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77630.json"
  },
  "details": "pupnp is an SDK for development of UPnP device and control point applications. Prior to 22.0.4, parse_hostport in upnp/src/genlib/net/uri/uri.c synchronously calls getaddrinfo while parse_uri is processing attacker-supplied hostnames from inbound HTTP request targets in upnp/src/genlib/net/http/httpparser.c and GENA SUBSCRIBE CALLBACK headers handled by create_url_list in upnp/src/gena/gena_device.c. A remote unauthenticated peer can choose a slow or nonresponsive hostname and block a bounded miniserver worker for the resolver timeout, allowing a small number of requests to exhaust the thread pool and deny UPnP service. This issue is fixed in 22.0.4.",
  "id": "CVE-2026-77630",
  "modified": "2026-10-17T02:30:20.053873027Z",
  "published": "2026-10-16T15:36:05.117Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77630.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/pupnp/pupnp/commit/5dba8070b4d64d976f8e6fc13f1f301befebe7d2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pupnp/pupnp/releases/tag/release-22.0.4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/pupnp/pupnp/security/advisories/GHSA-46ph-jff5-5h77"
    },
    {
      "type": "WEB",
      "url": "https://issues.oss-fuzz.com/issues/531780528"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-77630"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "pupnp: Denial of service via blocking DNS resolution in parse_uri()/GENA callback parsing"
}