Resource exhaustion in PUPnP - #VU134844
Published: June 18, 2026
Vulnerability identifier: #VU134844
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: pupnp
Affected software:
PUPnP
PUPnP
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper resource management in the libupnp HTTP entity parser when processing chunked HTTP request or response bodies. A remote attacker can send a specially crafted chunked HTTP message to cause a denial of service.
The issue occurs because decoded chunked entity data can grow beyond the configured maximum entity size limit enforced for numeric Content-Length values.
Remediation
Install security update from vendor's website.