CVE-2026-12993
Medium · 6.5CVSS
6.5
EPSS
0.5%
Published
Jun 26, 2026
CISA due date
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The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
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