6.5
Medium
CVE-2026-6732 Libxml2: libxml2: denial of service via crafted xsd-validated document
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.
CVSS 3.1 detail
Vector CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitable from the adjacent network, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.
- Attack vector
- Adjacent network
- Attack complexity
- Low
- Privileges required
- None
- Interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10 | Versions not published | |
| Red Hat Enterprise Linux 6 | Versions not published | |
| Red Hat Enterprise Linux 7 | Versions not published | |
| Red Hat Enterprise Linux 8 | Versions not published | |
| Red Hat Enterprise Linux 9 | Versions not published | |
| Red Hat JBoss Core Services | Versions not published | |
| Red Hat OpenShift Container Platform 4 | Versions not published | |
| Red Hat Hardened Images 2.15 | earliest → < 2.15.3-0.1.hum1 | 2.15.3-0.1.hum1 |
References
- RHSA-2026:11503 access.redhat.com
- access.redhat.com access.redhat.com
- RHBZ#2461300 bugzilla.redhat.com
- gitlab.gnome.org gitlab.gnome.org
- gitlab.gnome.org gitlab.gnome.org
Timeline
- Published
- Last modified
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