> CVE-2026-12993 [MEDIUM]

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PUBLISHED
2026-06-26 00:16
MODIFIED
2026-06-26 00:16
CVSS_SCORE V3
6.5
EPSS (Prob. Exploit)
0.52%
Top 55.9%
DATA SOURCES:
NVD 🔗 2026-06-26 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-01 GITHUB 🔗 2026-11-05

> DESCRIPTION

A flaw was found in Apicurio Registry. The DocumentBuilderAccessor correctly blocks external DTD and schema access but does not disable DOCTYPE declarations or enable FEATURE_SECURE_PROCESSING. An attacker with artifact-write permission can upload XML documents with internal entity-expansion payloads (billion-laughs variant) that cause CPU and heap exhaustion, partially mitigated by the JAXP default 64,000 entity-expansion limit.

> 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:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EXPLOITABILITY
2.8
IMPACT
3.6

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
Low (L)
Authentifié avec compte utilisateur basique
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-776

> CWE DETAILED DESCRIPTIONS

CWE-776: Improper Restriction of Recursive Entity References in DTDs - The product uses XML documents and allows their structure to be defined with a Document Type Definition (DTD), but it does not properly control the number of recursive definitions of entities.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: Apicurio Registry (container images) release and security update [ 3.3.1 GA ]
An update to the images for Red Hat build of Apicurio Registry is now available from the Red Hat Container Catalog. The purpose of this text-only errata is to inform you about the security issues fixe...

> GITHUB SECURITY ADVISORY

GHSA-748j-wm96-4wh5 MODERATE

Apicurio Registry is vulnerable to denial of service through XML entity expansion

AFFECTED PACKAGES:
MAVEN / io.apicurio:apicurio-registry-schema-util-xml
< 3.2.6
Fixed in: 3.2.6
MAVEN / io.apicurio:apicurio-registry-schema-util-xml
>= 3.3.0, < 3.3.1
Fixed in: 3.3.1

> HISTORIQUE DES MODIFICATIONS

Première apparition
26/06/2026 00:16
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:59
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') - The product uses XML documents and allows their structure to be defined with a Document Type Definition ...
Nouvelle valeur:
CWE-776: Improper Restriction of Recursive Entity References in DTDs - The product uses XML documents and allows their structure to be defined with a Document Type Definition (DTD), but it does not pr...
📊 ENRICHISSEMENT 01/07/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') - The product uses XML documents and allows their structure to be defined with a Document Type Definition ...
Total des modifications: 2 Dernière mise à jour: 5 days ago

> REFERENCES

https://access.redhat.com/security/cve/CVE-2026-12993
https://bugzilla.redhat.com/show_bug.cgi?id=2491692
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