CVE-2026-6732

🔶 medium

Summary

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 Score

6.5

Medium

EPSS Score

0.1

Exploit Probability

Published Date

2026-04-23

First Seen: 2026-04-27

📊 Relative Risk Intelligence

This CVE is Lower Risk - more severe than 47.9% of all 322,079 vulnerabilities in our database.

#167,935

Below average severity

Severity Percentile

🎯 CISA SSVC Assessment Updated: Apr 24, 2026

🔍 Exploitation Status

None

No known exploits

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Partial

Limited system impact

🏆 Discovered By

Red Hat would like to thank Ariel Schon for reporting this issue.

SSVC data provided by CISA

Last Modified 2026-05-15

Source NVD 🔗

CVSS Vector 3.1 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE IDs (Weakness Types)

CWE-843

📦 Affected Products 9

Vendor	Product	Status	Affected Versions
redhat	enterprise_linux	Affected	v10.0
redhat	enterprise_linux	Affected	v6.0
redhat	enterprise_linux	Affected	v7.0
redhat	enterprise_linux	Affected	v8.0
redhat	enterprise_linux	Affected	v9.0
xmlsoft	libxml2	Affected	> 2.13.0 < 2.15.3
xmlsoft	libxml2	Affected	v-
redhat	openshift_container_platform	Affected	v4.0
redhat	jboss_core_services	Affected	v-

🔗 References 5

https://access.redhat.com/errata/RHSA-2026:11503

Third Party Advisory

https://access.redhat.com/security/cve/CVE-2026-6732

Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2461300

Issue Tracking Third Party Advisory

https://gitlab.gnome.org/GNOME/libxml2/-/issues/1097

Exploit Issue Tracking Third Party Advisory

https://gitlab.gnome.org/GNOME/libxml2/-/merge_reque...

Issue Tracking Third Party Advisory

🔗 Related CVEs 6

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-42010	⚠️ high	7.1	0.2	A flaw was found in gnutls. Servers configured with RSA-PSK (Rivest–Shamir–Adleman – Pre-Shared Key) wrongfully ma...	2026-05-07
CVE-2026-34000	🔶 medium	6.1	0.0	A flaw was found in the X.Org X server. This out-of-bounds read vulnerability in the XKB geometry processing, specifical...	2026-05-05
CVE-2026-34002	🔶 medium	6.1	0.0	A flaw was found in the X.Org X server. This vulnerability, an out-of-bounds read, affects the XKB (X Keyboard Extension...	2026-05-05
CVE-2026-33845	⚠️ high	7.5	0.0	A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an i...	2026-04-30
CVE-2026-3832	ℹ️ low	3.7	0.0	A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted Online ...	2026-04-30
CVE-2026-3833	🔶 medium	6.5	0.1	A flaw was found in gnutls. This vulnerability occurs because gnutls performs case-sensitive comparisons of `nameConstra...	2026-04-30

These CVEs affect the same products