CVE-2026-6732

A flaw was found in libxml2. This vulnerability occurs when the library processes a specially crafted XML Schema Definition (XSD) validated document that includes an internal entity reference. An attacker could exploit this by providing a malicious document, leading to a type confusion error that causes the application to crash. This results in a denial of service (DoS), making the affected system or application unavailable.
References
Link Resource
https://access.redhat.com/errata/RHSA-2026:11503 Third Party Advisory
https://access.redhat.com/security/cve/CVE-2026-6732 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2461300 Issue Tracking Third Party Advisory
https://gitlab.gnome.org/GNOME/libxml2/-/issues/1097 Exploit Issue Tracking Third Party Advisory
https://gitlab.gnome.org/GNOME/libxml2/-/merge_requests/411 Issue Tracking Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:jboss_core_services:-:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:*
cpe:2.3:a:ibm:vios:4.1.2.0:*:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:7.3.4:*:*:*:*:*:*:*

History

26 Oct 2026, 21:10

Type Values Removed Values Added
Summary
  • (es) Se encontró un fallo en libxml2. Esta vulnerabilidad ocurre cuando la biblioteca procesa un documento validado con XML Schema Definition (XSD) especialmente diseñado que incluye una referencia a entidad interna. Un atacante podría explotar esto al proporcionar un documento malicioso, lo que lleva a un error de confusión de tipos que provoca el bloqueo de la aplicación. Esto resulta en una denegación de servicio (DoS), dejando el sistema o la aplicación afectados no disponibles.

Information

Published : 2026-04-23 23:16

Updated : 2026-10-26 21:10


NVD link : CVE-2026-6732

Mitre link : CVE-2026-6732

CVE.ORG link : CVE-2026-6732


JSON object : View

Products Affected

redhat

  • openshift_container_platform
  • jboss_core_services
  • hardened_images
  • enterprise_linux

ibm

  • aix
  • vios

xmlsoft

  • libxml2
CWE
CWE-843

Access of Resource Using Incompatible Type ('Type Confusion')