CVE-2026-57487 libupnp chunked HTTP bodies can bypass g_maxContentLength and be fully buffered

pupnp is an SDK for development of UPnP device and control point applications. Prior to 2.0.2, Transfer-Encoding: chunked causes the HTTP parser in upnp/src/genlib/net/http/httpparser.c to leave parser-contentlength at zero while parserparsechunkyentity and parserparsechunkybody accumulate decode...

CVE-2026-57487

The pupnp SDK (prior to version 2.0.2 ) contains a vulnerability where chunked Transfer-Encoding in HTTP requests allows an attacker to bypass g_maxContentLength checks. The HTTP parser in upnp/src/genlib/net/http/httpparser.c fails to set the content_length correctly for chunked bodies, while pa...

CVE-2026-57487 libupnp chunked HTTP bodies can bypass g_maxContentLength and be fully buffered

pupnp is an SDK for development of UPnP device and control point applications. Prior to 2.0.2, Transfer-Encoding: chunked causes the HTTP parser in upnp/src/genlib/net/http/httpparser.c to leave parser-contentlength at zero while parserparsechunkyentity and parserparsechunkybody accumulate decode...

CVE-2026-57487 libupnp chunked HTTP bodies can bypass g_maxContentLength and be fully buffered

pupnp is an SDK for development of UPnP device and control point applications. Prior to 2.0.2, Transfer-Encoding: chunked causes the HTTP parser in upnp/src/genlib/net/http/httpparser.c to leave parser-contentlength at zero while parserparsechunkyentity and parserparsechunkybody accumulate decode...