CVE-2026-41682: pupnp: Port truncation via atoi() cast in parse_uri() allows SSRF port confusion

Severity: medium (CVSS 6.9 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-08 · updated 2026-06-17
Weakness: CWE-195

Description

pupnp is an SDK for development of UPnP device and control point applications. Prior to version 1.18.5, pupnp is vulnerable to SRRF port confusion due to port truncation via atoi() cast in parse_uri(). This issue has been patched in version 1.18.5.

Affected products

pupnp: before 1.18.5

References

https://github.com/pupnp/pupnp/commit/def5f9a2bc42f5b3d713e37c516fbe840ce54b7b
https://github.com/pupnp/pupnp/releases/tag/release-1.18.5
https://github.com/pupnp/pupnp/security/advisories/GHSA-q522-6w45-4j58

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