{"id":"CVE-2026-77630","revision":"eed368387e3746f69a8bb3c1f1d1793e","records":[{"revision":"eed368387e3746f69a8bb3c1f1d1793e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-77630","aliases":[],"title":"pupnp: Denial of service via blocking DNS resolution in parse_uri()/GENA callback parsing","description":"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.","state":0,"publishedAt":"2026-10-16T15:36:05.117+00:00","modifiedAt":"2026-10-16T17:06:16.423+00:00","affected":[{"ecosystem":"Vendor product","name":"pupnp","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"pupnp\",\n                    \"product\": \"pupnp\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 22.0.4\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/pupnp/pupnp/security/advisories/GHSA-46ph-jff5-5h77","https://github.com/pupnp/pupnp/commit/5dba8070b4d64d976f8e6fc13f1f301befebe7d2","https://github.com/pupnp/pupnp/releases/tag/release-22.0.4","https://issues.oss-fuzz.com/issues/531780528"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-77630","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-77630","identifiers":["CVE-2026-77630"]},"retained":false,"historicalAffected":[]}],"coverage":[]}