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.
Fix
Patch, vendor advisory and mitigation references on NVD 3
- https://github.com/pupnp/pupnp/commit/4b2f775e3b98de3cfb096707bcde040c5562d9ec Patch
- https://github.com/pupnp/pupnp/security/advisories/GHSA-q54q-vx78-v9rq Exploit, Mitigation, Vendor Advisory
- https://github.com/pupnp/pupnp/security/advisories/GHSA-q54q-vx78-v9rq Exploit, Mitigation, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 4
- Cpes+1 CPE criteria (now 1)NVD modified 2026-10-23 16:07
- StatusAwaiting Analysis → AnalyzedNVD modified 2026-10-23 16:07
- StatusReceived → Awaiting AnalysisNVD modified 2026-10-16 18:09
- First seenCVSS 7.5NVD modified 2026-10-16 16:18
Affected (CPE criteria) 1
cpe:2.3:a:pupnp_project:pupnp:*:*:*:*:*:*:*:*
References 4
- https://github.com/pupnp/pupnp/commit/4b2f775e3b98de3cfb096707bcde040c5562d9ec Patch
- https://github.com/pupnp/pupnp/releases/tag/release-2.0.2 Release Notes
- https://github.com/pupnp/pupnp/security/advisories/GHSA-q54q-vx78-v9rq Exploit, Mitigation, Vendor Advisory
- https://github.com/pupnp/pupnp/security/advisories/GHSA-q54q-vx78-v9rq Exploit, Mitigation, Vendor Advisory