> CVE-2026-6732 [MEDIUM]

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PUBLISHED
2026-04-23 23:16
MODIFIED
2026-04-23 23:16
CVSS_SCORE V3
6.5
EPSS (Prob. Exploit)
0.63%
Top 49.4%
DATA SOURCES:
NVD đź”— 2026-04-24 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-11-08 GITHUB đź”— 2026-11-05 OSV đź”— 2026-11-02 MSRC đź”— 2026-08-01

> 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.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EXPLOITABILITY
2.8
IMPACT
3.6

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Adjacent (A)
Exploit nécessite un accès au segment réseau local
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
None (N)
Aucune divulgation d'informations
I (Impact Intégrité)
Integrity Impact
None (N)
Aucune modification de données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-843

> CWE DETAILED DESCRIPTIONS

CWE-843: Access of Resource Using Incompatible Type - The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
An update for Red Hat Hardened Images RPMs is now available.

> GITHUB SECURITY ADVISORY

GHSA-rwj8-pgh3-r573 HIGH

GitPython: Environment-variable exfiltration via os.path.expandvars() on Repo.clone_from() URL

AFFECTED PACKAGES:
PIP / GitPython
< 3.1.52
Fixed in: 3.1.52

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

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

AFFECTED PACKAGES:
Unknown / Unknown
5 versions affected
Unknown / Unknown
5 versions affected

> HISTORIQUE DES MODIFICATIONS

Première apparition
23/04/2026 23:16
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:59
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') - The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses th...
Nouvelle valeur:
CWE-843: Access of Resource Using Incompatible Type - The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a...
📊 ENRICHISSEMENT 01/05/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') - The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses th...
Total des modifications: 2 Dernière mise à jour: 1 week ago

> REFERENCES

https://access.redhat.com/security/cve/CVE-2026-6732
https://bugzilla.redhat.com/show_bug.cgi?id=2461300
https://gitlab.gnome.org/GNOME/libxml2/-/issues/1097
https://gitlab.gnome.org/GNOME/libxml2/-/merge_requests/411
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