CVE-2026-12993
Apicurio/apicurio-registry: apicurio-registry: xml entity-expansion denial of service via internal dtd subset
Vexday Risk Score
10Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 6.5EPSS —KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
25 Jun 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products
Red Hat · Red Hat build of Apicurio Registry 3Want to know if your infrastructure is exposed to this?
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