CVE-2026-57486

pupnp is an SDK for development of UPnP device and control point applications. Prior to 2.0.2, ixmlNode_compare in ixml/src/node.c passes the nullable nodeValue, namespaceURI, prefix, and localName fields directly to strcmp. Non-namespaced attributes created by ixmlDocument_createAttribute legitimately leave those fields NULL. When ixmlElement_removeAttributeNode compares two distinct attribute objects with the same nodeName through find_condition_node, the pointer-identity shortcut does not apply and the comparison dereferences NULL, causing a process crash when application handling of attacker-controlled XML reaches this path. This issue is fixed in 2.0.2.

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.4% chance of exploitation in the next 30 days; higher than 34% of CVEs (scores of 2026-10-25)

CWE

CWE-476

Published

2026-10-16

Modified

2026-10-23

Record from

the NVD, synced 2026-10-23

Affected

• pupnp_project:pupnp

References

• https://github.com/pupnp/pupnp/commit/4b2f775e3b98de3cfb096707bcde040c5562d9ec
• https://github.com/pupnp/pupnp/releases/tag/release-2.0.2
• https://github.com/pupnp/pupnp/security/advisories/GHSA-q54q-vx78-v9rq
• https://github.com/pupnp/pupnp/security/advisories/GHSA-q54q-vx78-v9rq

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