CVE-2026-12993 (GCVE-0-2026-12993)

Vulnerability from cvelistv5 – Published: 2026-06-25 23:23 – Updated: 2026-08-25 14:53
VLAI
Title
Apicurio/apicurio-registry: apicurio-registry: xml entity-expansion denial of service via internal dtd subset
Summary
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.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 18:12 UTC
CWE
  • CWE-776 - Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
Assigner
redhat CNA under the redhat root
CNA scorecard B 81/100 over 1018 records in the last 180 days details
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:59360 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-12993 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2491692 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
Red Hat Red Hat build of Apicurio Registry 3.3.1     cpe:/a:redhat:apicurio_registry:3.3
Create a notification for this product.
Date Public
2026-06-10 13:00
Show details on NVD website
To clipboard 

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