CVE-2026-77630

CVE-2026-77630 · pupnp: Denial of service via blocking DNS resolution in parse_uri()/GENA callback parsing

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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.

CVSS 7.5 · Высокий · EPSS 0,3% · Есть исправление

Опубликовано

2026-10-16T15:36:05.117Z

Обновлено

2026-10-16T17:06:16.423Z

Стек: system

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