CVE-2026-6732
Medium
Description
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.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Xmlsoft Libxml2
PublishedApr 23, 2026
First seenApr 23, 2026
Weakness typeCWE-843CWE-843
How to fix
Update
- xmlsoft libxml22.15.3 or later
- ibm vios4.1.1.30 or later
- ibm aix7.2.5.12, 7.3.3.3 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| xmlsoft libxml2 | 2.13.0 ≤ v < 2.15.3 | 2.15.3 |
| redhat hardened_images | No range specified | — |
| redhat jboss_core_services | No range specified | — |
| redhat openshift_container_platform | 4.0 | — |
| redhat enterprise_linux | 6.0, 7.0, 8.0, 9.0, 10.0 | — |
| ibm vios | 4.1.0 ≤ v < 4.1.1.30, 4.1.2.0 | 4.1.1.30 |
| ibm aix | 7.2.5 ≤ v < 7.2.5.12, 7.3.2 ≤ v < 7.3.3.3, 7.3.4 | 7.2.5.12, 7.3.3.3 |
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