CVE-2026-57488

High

Description

pupnp is an SDK for development of UPnP device and control point applications. Prior to 2.0.2, raw_to_int in upnp/src/genlib/net/http/httpparser.c parses Content-Length with strtol and casts the resulting long to a 32-bit int before the caller stores it as unsigned int. On LP64 systems, values greater than INT_MAX can truncate or wrap, so the HTTP parser can accept a body length different from the declared value. A remote adjacent-network peer can use the resulting parser disagreement to leave bytes to be interpreted as another request in persistent or proxied contexts, or can make a worker wait for an extremely large body and cause denial of service. This issue is fixed in 2.0.2.

SeverityHigh
CVSS7.1
Exploit probability—
ProductPupnp
PublishedOct 16, 2026
First seenOct 16, 2026

How to fix

Update
  • pupnp_project pupnp2.0.2 or later

Affected products

ProductAffected versionsFixed in
pupnp_project pupnpv < 2.0.22.0.2

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CVE-2026-57488 · Pupnp · Dark Radar