Allocation of Resources Without Limits or Throttling in PUPnP - #VU151945
Published: September 24, 2026
Vulnerability identifier: #VU151945
CSH Severity: Medium
CVSS v4: 8.7 [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]
CVE-ID: N/A
CWE-ID: CWE-770
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to allocation of resources without limits in the streaming HTTP GET client when processing HTTP response status lines and headers. A remote attacker can send an unbounded stream of header lines without a terminating blank line to cause a denial of service.
The issue affects UpnpOpenHttpGet(), UpnpOpenHttpGetProxy(), UpnpOpenHttpGetEx(), and UpnpGetHttpResponse().
Affected software
PUPnP
Remediation
Install security update from vendor's website.
PUPnP - update to 22.1.3