CVE-2026-6732 MEDIUM

CVE-2026-6732: Libxml2: libxml2: denial of service via crafted xsd-validated document

Vendor Red Hat
Product Red Hat Enterprise Linux 10
Weakness CWE-843
Published April 23, 2026
Last update April 30, 2026

CVSS base score

6.5/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 23, 2026 CVE published
April 30, 2026 Record updated