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.
CVE-2026-6732
CVSS base score
6.5 (v3.1)
Severity
MEDIUM
Attack vector
Adjacent_network
Weakness
CWE-843
Last modified
November 5, 2026
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
xmlsoft libxml2
redhat hardened images
redhat jboss core services
redhat openshift container platform
redhat enterprise linux
ibm vios
ibm aix
References
- access.redhat.com Third Party Advisory
- access.redhat.com Third Party Advisory
- bugzilla.redhat.com Issue Tracking, Third Party Advisory
- gitlab.gnome.org Exploit, Issue Tracking, Third Party Advisory
- gitlab.gnome.org Issue Tracking, Third Party Advisory