CVE-2026-6732
Published: April 24, 2026Last modified: April 25, 2026
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | libxml2 | Not affected (2.10.3-r2) |
| 25 LTS | libxml2 | Vulnerable (2.13.8-r0) | |
| Stream | libxml2 | Vulnerable (2.13.8-r0) | |
| Hardened Containers | 23 LTS | libxml2 | Not affected (2.10.3-r2) |
| 25 LTS | libxml2 | Vulnerable (2.13.8-r0) | |
| Stream | libxml2 | Vulnerable (2.13.8-r0) |