CVE-2026-57486

pupnp: NULL pointer dereference in ixmlNode_compare crashes on non-namespaced attributes

Published Oct 16, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

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History
Type Values Removed Values Added
First Time appeared Pupnp Project
Pupnp Project pupnp
CPEs cpe:2.3:a:pupnp_project:pupnp:*:*:*:*:*:*:*:*
Vendors & Products Pupnp Project
Pupnp Project pupnp
Type Values Removed Values Added
First Time appeared Pupnp
Pupnp pupnp
Vendors & Products Pupnp
Pupnp pupnp
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description 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.
Title pupnp: NULL pointer dereference in ixmlNode_compare crashes on non-namespaced attributes
Weaknesses CWE-476
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Oct 16, 2026, 3:56 PM
Reserved
Jun 24, 2026, 2:53 PM
Status
Analyzed
Published
Oct 16, 2026, 4:18 PM
Modified
Oct 23, 2026, 4:07 PM