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CVE-2026-6732

Libxml2: libxml2: denial of service via crafted xsd-validated document

Published: Apr 23, 2026Updated: Jun 30, 2026 Sources: CVE List NVDCWE-843
6.5MEDIUM
NVD MITRE
EPSS Score
0.6%
Top 54.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-843

Affected Products

Red Hat
commercial·USaka redhat
hardened imagesOn-prem
Operating Systems / linux-distro
jboss core servicesOn-prem
Operating Systems / linux-distro
openshift container platformOn-prem
Operating Systems / linux-distro
Red Hat Enterprise Linux 10On-premOS
Operating Systems / linux-distro
Red Hat Hardened ImagesOn-premOS
Operating Systems / linux-distro
Red Hat JBoss Core ServicesOn-premWeb App
Enterprise Software / itsm-monitoring
Red Hat OpenShift Container Platform 4SaaSSaaS Service
Cloud & SaaS / container-orchestration
ibm
commercial·USaka international business machines
viosOn-prem
Enterprise Software / itsm-monitoring
aixOS
Operating Systems / unix-bsd
xmlsoft
oss-projectaka libxslt, libxml2
libxml2LibraryLibrary
OSS Libraries / generic-library
and 5 more affected products View all →

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
Scannable·OpenVAS
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://access.redhat.com/errata/RHSA-2026:11503
access.redhat.com
https://access.redhat.com/security/cve/CVE-2026-6732
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2461300
bugzilla.redhat.com
and 2 more references View all →
News mentions
Could not load news mentions.

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