{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-77630","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-08-20T20:52:01.927Z","datePublished":"2026-10-16T15:36:05.117Z","dateUpdated":"2026-10-16T17:06:16.423Z"},"containers":{"cna":{"title":"pupnp: Denial of service via blocking DNS resolution in parse_uri()/GENA callback parsing","problemTypes":[{"descriptions":[{"cweId":"CWE-400","lang":"en","description":"CWE-400: Uncontrolled Resource Consumption","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"references":[{"name":"https://github.com/pupnp/pupnp/security/advisories/GHSA-46ph-jff5-5h77","tags":["x_refsource_CONFIRM"],"url":"https://github.com/pupnp/pupnp/security/advisories/GHSA-46ph-jff5-5h77"},{"name":"https://github.com/pupnp/pupnp/commit/5dba8070b4d64d976f8e6fc13f1f301befebe7d2","tags":["x_refsource_MISC"],"url":"https://github.com/pupnp/pupnp/commit/5dba8070b4d64d976f8e6fc13f1f301befebe7d2"},{"name":"https://github.com/pupnp/pupnp/releases/tag/release-22.0.4","tags":["x_refsource_MISC"],"url":"https://github.com/pupnp/pupnp/releases/tag/release-22.0.4"},{"name":"https://issues.oss-fuzz.com/issues/531780528","tags":["x_refsource_MISC"],"url":"https://issues.oss-fuzz.com/issues/531780528"}],"affected":[{"vendor":"pupnp","product":"pupnp","versions":[{"version":"< 22.0.4","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-16T15:36:05.117Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-46ph-jff5-5h77","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-16T16:46:58.448632Z","id":"CVE-2026-77630","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-16T17:06:16.423Z"}}]}}