Resource Exhaustion Affecting pupnp package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ECHOLATEST-PUPNP-21173174
- published17 Oct 2026
- disclosed16 Oct 2026
Introduced: 16 Oct 2026
NewCVE-2026-77630 (opens in a new tab)How to fix?
There is no fixed version for Echo:latest pupnp.
NVD Description
Note: Versions mentioned in the description apply only to the upstream pupnp package and not the pupnp package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
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.
References
- https://advisory.echohq.com/cve/CVE-2026-77630
- https://github.com/pupnp/pupnp/commit/5dba8070b4d64d976f8e6fc13f1f301befebe7d2
- https://github.com/pupnp/pupnp/releases/tag/release-22.0.4
- https://github.com/pupnp/pupnp/security/advisories/GHSA-46ph-jff5-5h77
- https://issues.oss-fuzz.com/issues/531780528