CVE-2026-6732
highA flaw was found in libxml2.
Vendor / product: Xmlsoft — libxml2
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
7.5
7.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-04-23 23:16
Modified: 2026-11-05 22:18
NVD status: Analyzed
Last synced 1 hour ago
Verified against the source API 2026-11-05 22:23 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
xmlsoft / libxml2 ≥2.13.0 <2.15.3
redhat / hardened_images all versions
redhat / jboss_core_services all versions
redhat / openshift_container_platform 4.0
redhat / enterprise_linux 6.0, 7.0, 8.0, 9.0, 10.0
ibm / vios ≥4.1.0 <4.1.1.30, 4.1.2.0
ibm / aix ≥7.2.5 <7.2.5.12, ≥7.3.2 <7.3.3.3, 7.3.4
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://access.redhat.com/errata/RHSA-2026:11503 secalert@redhat.com
- https://access.redhat.com/security/cve/CVE-2026-6732 secalert@redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2461300 secalert@redhat.com
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/1097 secalert@redhat.com
- https://gitlab.gnome.org/GNOME/libxml2/-/merge_requests/411 secalert@redhat.com
Data sources
NVD CVE API 2.0 — fetched 2026-11-05 22:23 UTC · record ↗