CVE-2026-6732
MEDIUM severity · CVSS 6.5 · CWE-843
6.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorAdjacent
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products we track (2)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://access.redhat.com/errata/RHSA-2026:11503Advisory
- https://access.redhat.com/security/cve/CVE-2026-6732Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2461300Advisory
- https://gitlab.gnome.org/GNOME/libxml2/-/merge_requests/411Advisory
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/1097Advisory