6.5

CVE-2026-12993

Apicurio/apicurio-registry: apicurio-registry: xml entity-expansion denial of service via internal dtd subset

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Redhat ≫ Build Of Apicurio Registry Version >= 3.0 <= 3.2
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.154
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
secalert@redhat.com 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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 (DTD), but it does not properly control the number of recursive definitions of entities.

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