CVE-2026-57488 (GCVE-0-2026-57488)
Vulnerability from cvelistv5 – Published: 2026-10-16 15:34 – Updated: 2026-10-16 19:08
VLAI
EPSS
VEX
Title
pupnp: Integer truncation in HTTP Content-Length parsing enables request smuggling
Summary
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.
Severity
7.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 19:08 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/pupnp/pupnp/security/advisorie… | x_refsource_CONFIRM |
| https://github.com/pupnp/pupnp/commit/de9602aef34… | x_refsource_MISC |
| https://github.com/pupnp/pupnp/releases/tag/relea… | x_refsource_MISC |
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