Medium · published April 24, 2026
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.
| Product | Versions | Fixed in |
|---|---|---|
| xmlsoft/libxml2 | ≥ 2.13.0, < 2.15.3 | 2.15.3 |
| redhat/hardened_images | all versions | — |
| redhat/jboss_core_services | all versions | — |
| redhat/openshift_container_platform | all versions | — |
| redhat/enterprise_linux | all versions | — |
| redhat/enterprise_linux | all versions | — |
| redhat/enterprise_linux | all versions | — |
| redhat/enterprise_linux | all versions | — |
| redhat/enterprise_linux | all versions | — |
| ibm/vios | ≥ 4.1.0, < 4.1.1.30 | 4.1.1.30 |
| ibm/vios | all versions | — |
| ibm/aix | ≥ 7.2.5, < 7.2.5.12 | 7.2.5.12 |
| ibm/aix | ≥ 7.3.2, < 7.3.3.3 | 7.3.3.3 |
| ibm/aix | all versions | — |